Вы не можете выбрать более 25 тем Темы должны начинаться с буквы или цифры, могут содержать дефисы(-) и должны содержать не более 35 символов.

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  1. <p align="center">
  2. <a href="https://github.com/trimstray/the-book-of-secret-knowledge">
  3. <img src="https://github.com/trimstray/the-book-of-secret-knowledge/blob/master/static/img/the-book-of-secret-knowledge-preview.png" alt="Master">
  4. </a>
  5. </p>
  6. <p align="center"><i>"Knowledge is powerful, be careful how you use it!"</i></p>
  7. <h4 align="center">A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, CLI/web tools, and more.</h4>
  8. <br>
  9. <p align="center">
  10. <a href="https://github.com/trimstray/the-book-of-secret-knowledge/pulls">
  11. <img src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg?longCache=true" alt="Pull Requests">
  12. </a>
  13. <a href="LICENSE.md">
  14. <img src="https://img.shields.io/badge/License-MIT-lightgrey.svg?longCache=true" alt="MIT License">
  15. </a>
  16. </p>
  17. <p align="center">
  18. <a href="https://twitter.com/trimstray" target="_blank">
  19. <img src="https://img.shields.io/twitter/follow/trimstray.svg?logo=twitter">
  20. </a>
  21. </p>
  22. <div align="center">
  23. <sub>Created by <a href="https://twitter.com/trimstray">trimstray</a> and <a href="https://github.com/trimstray/the-book-of-secret-knowledge/graphs/contributors">contributors</a></sub>
  24. </div>
  25. <br>
  26. ****
  27. ## 📔 What is it?
  28. This repository is a collection of various materials and tools that I use every day in my work. It contains a lot of useful information gathered in one place. It is an invaluable source of knowledge for me that I often refer back to.
  29. ## 🚻 For whom?
  30. For everyone, really. Here everyone can find something useful. But to be perfectly honest, it is aimed towards System and Network administrators, DevOps, Pentesters, and Security Researchers.
  31. ## ℹ️ Contributing
  32. If you find something that doesn't make sense, or something doesn't seem right, please make a pull request and add valid and well-reasoned explanations about your changes or comments.
  33. A few simple rules for this project:
  34. - Inviting and clear
  35. - Not tiring
  36. - Useful
  37. These rules may be better:
  38. - Easy to contribute to (Markdown + HTML ...)
  39. - Easy to find (simple TOC, maybe it's worth extending?)
  40. Urls marked **\*** are temporarily unavailable. Please don't delete them without confirming they have permanently expired.
  41. Before adding a pull request, please see the **[contributing guidelines](.github/CONTRIBUTING.md)**. You should also remember this:
  42. ```diff
  43. + This repository is not meant to contain everything, but only good quality stuff.
  44. ```
  45. All **suggestions/PR** are welcome!
  46. ### Code Contributors
  47. This project exists thanks to all the people who contribute.
  48. <a href="https://github.com/trimstray/the-book-of-secret-knowledge/graphs/contributors"><img src="https://opencollective.com/the-book-of-secret-knowledge/contributors.svg?width=890&button=false"></a>
  49. ### Financial Contributors
  50. <p align="left">
  51. <a href="https://opencollective.com/the-book-of-secret-knowledge" alt="Financial Contributors on Open Collective">
  52. <img src="https://img.shields.io/opencollective/backers/the-book-of-secret-knowledge?style=for-the-badge&color=FF4500&labelColor=A9A9A9"></a>
  53. </a>
  54. <a href="https://opencollective.com/the-book-of-secret-knowledge" alt="Financial Contributors on Open Collective">
  55. <img src="https://img.shields.io/opencollective/sponsors/the-book-of-secret-knowledge?style=for-the-badge&color=FF4500&labelColor=A9A9A9"></a>
  56. </a>
  57. </p>
  58. ## :newspaper: &nbsp;RSS Feed & Updates
  59. GitHub exposes an [RSS/Atom](https://github.com/trimstray/the-book-of-secret-knowledge/commits.atom) feed of the commits, which may also be useful if you want to be kept informed about all changes.
  60. ## :ballot_box_with_check: &nbsp;ToDo
  61. - [ ] Add new stuff...
  62. - [ ] Add useful shell functions
  63. - [ ] Add one-liners for collection tools (eg. CLI Tools)
  64. - [ ] Sort order in lists
  65. New items are also added on a regular basis.
  66. ## :anger: &nbsp;Table of Contents
  67. Only main chapters:
  68. - **[CLI Tools](#cli-tools-toc)**
  69. - **[GUI Tools](#gui-tools-toc)**
  70. - **[Web Tools](#web-tools-toc)**
  71. - **[Systems/Services](#systemsservices-toc)**
  72. - **[Networks](#networks-toc)**
  73. - **[Containers/Orchestration](#containersorchestration-toc)**
  74. - **[Manuals/Howtos/Tutorials](#manualshowtostutorials-toc)**
  75. - **[Inspiring Lists](#inspiring-lists-toc)**
  76. - **[Blogs/Podcasts/Videos](#blogspodcastsvideos-toc)**
  77. - **[Hacking/Penetration Testing](#hackingpenetration-testing-toc)**
  78. - **[Your daily knowledge and news](#your-daily-knowledge-and-news-toc)**
  79. - **[Other Cheat Sheets](#other-cheat-sheets-toc)**
  80. - **[Shell One-liners](#shell-one-liners-toc)**
  81. - **[Shell Tricks](#shell-tricks-toc)**
  82. - **[Shell Functions](#shell-functions-toc)**
  83. ## :trident: &nbsp;The Book of Secret Knowledge (Chapters)
  84. #### CLI Tools &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  85. ##### :black_small_square: Shells
  86. <p>
  87. &nbsp;&nbsp; <a href="https://www.gnu.org/software/bash/"><b>GNU Bash</b></a> - is an sh-compatible shell that incorporates useful features from the Korn shell and C shell.<br>
  88. &nbsp;&nbsp; <a href="https://www.zsh.org/"><b>Zsh</b></a> - is a shell designed for interactive use, although it is also a powerful scripting language.<br>
  89. &nbsp;&nbsp; <a href="https://tcl-lang.org/"><b>tclsh</b></a> - is a very powerful cross-platform shell, suitable for a huge range of uses.<br>
  90. &nbsp;&nbsp; <a href="https://github.com/Bash-it/bash-it"><b>bash-it</b></a> - is a framework for using, developing and maintaining shell scripts and custom commands.<br>
  91. &nbsp;&nbsp; <a href="https://ohmyz.sh/"><b>Oh My ZSH!</b></a> - is the best framework for managing your Zsh configuration.<br>
  92. &nbsp;&nbsp; <a href="https://github.com/oh-my-fish/oh-my-fish"><b>Oh My Fish</b></a> - the Fishshell framework.<br>
  93. &nbsp;&nbsp; <a href="https://github.com/starship/starship"><b>Starship</b></a> - the cross-shell prompt written in Rust.<br>
  94. &nbsp;&nbsp; <a href="https://github.com/romkatv/powerlevel10k"><b>powerlevel10k</b></a> - is a fast reimplementation of Powerlevel9k ZSH theme.<br>
  95. </p>
  96. ##### :black_small_square: Shell plugins
  97. <p>
  98. &nbsp;&nbsp; <a href="https://github.com/rupa/z"><b>z</b></a> - tracks the folder you use the most and allow you to jump, without having to type the whole path.<br>
  99. &nbsp;&nbsp; <a href="https://github.com/junegunn/fzf"><b>fzf</b></a> - is a general-purpose command-line fuzzy finder.<br>
  100. &nbsp;&nbsp; <a href="https://github.com/zsh-users/zsh-autosuggestions"><b>zsh-autosuggestions</b></a> - Fish-like autosuggestions for Zsh.<br>
  101. &nbsp;&nbsp; <a href="https://github.com/zsh-users/zsh-syntax-highlighting"><b>zsh-syntax-highlighting</b></a> - Fish shell like syntax highlighting for Zsh.<br>
  102. &nbsp;&nbsp; <a href="https://github.com/unixorn/awesome-zsh-plugins"><b>Awesome ZSH Plugins</b></a> - A list of frameworks, plugins, themes and tutorials for ZSH.<br>
  103. </p>
  104. ##### :black_small_square: Managers
  105. <p>
  106. &nbsp;&nbsp; <a href="https://midnight-commander.org/"><b>Midnight Commander</b></a> - is a visual file manager, licensed under GNU General Public License.<br>
  107. &nbsp;&nbsp; <a href="https://github.com/ranger/ranger"><b>ranger</b></a> - is a VIM-inspired filemanager for the console.<br>
  108. &nbsp;&nbsp; <a href="https://github.com/jarun/nnn"><b>nnn</b></a> - is a tiny, lightning fast, feature-packed file manager.<br>
  109. &nbsp;&nbsp; <a href="https://www.gnu.org/software/screen/"><b>screen</b></a> - is a full-screen window manager that multiplexes a physical terminal.<br>
  110. &nbsp;&nbsp; <a href="https://github.com/tmux/tmux/wiki"><b>tmux</b></a> - is a terminal multiplexer, lets you switch easily between several programs in one terminal.<br>
  111. &nbsp;&nbsp; <a href="https://github.com/peikk0/tmux-cssh"><b>tmux-cssh</b></a> - is a tool to set comfortable and easy to use functionality tmux-sessions.<br>
  112. </p>
  113. ##### :black_small_square: Text editors
  114. <p>
  115. &nbsp;&nbsp; <a href="http://ex-vi.sourceforge.net/"><b>vi</b></a> - is one of the most common text editors on Unix.<br>
  116. &nbsp;&nbsp; <a href="https://www.vim.org/"><b>vim</b></a> - is a highly configurable text editor.<br>
  117. &nbsp;&nbsp; <a href="https://www.gnu.org/software/emacs/"><b>emacs</b></a> - is an extensible, customizable, free/libre text editor, and more.<br>
  118. &nbsp;&nbsp; <a href="https://github.com/zyedidia/micro"><b>micro</b></a> - is a modern and intuitive terminal-based text editor.<br>
  119. &nbsp;&nbsp; <a href="https://neovim.io/"><b>neovim</b></a> - is a free open source, powerful, extensible and usable code editor.<br>
  120. &nbsp;&nbsp; <a href="https://www.spacemacs.org/"><b>spacemacs</b></a> - a community-driven Emacs distribution.<br>
  121. &nbsp;&nbsp; <a href="https://spacevim.org/"><b>spacevim</b></a> - a community-driven vim distribution.<br>
  122. </p>
  123. ##### :black_small_square: Files and directories
  124. <p>
  125. &nbsp;&nbsp; <a href="https://github.com/sharkdp/fd"><b>fd</b></a> - is a simple, fast and user-friendly alternative to find.<br>
  126. &nbsp;&nbsp; <a href="https://dev.yorhel.nl/ncdu"><b>ncdu</b></a> - is an easy to use, fast disk usage analyzer.<br>
  127. </p>
  128. ##### :black_small_square: Network
  129. <p>
  130. &nbsp;&nbsp; <a href="https://www.putty.org/"><b>PuTTY</b></a> - is an SSH and telnet client, developed originally by Simon Tatham.<br>
  131. &nbsp;&nbsp; <a href="https://mosh.org/"><b>Mosh</b></a> - is a SSH wrapper designed to keep a SSH session alive over a volatile connection.<br>
  132. &nbsp;&nbsp; <a href="https://eternalterminal.dev/"><b>Eternal Terminal</b></a> - enables mouse-scrolling and tmux commands inside the SSH session.<br>
  133. &nbsp;&nbsp; <a href="https://nmap.org/"><b>nmap</b></a> - is a free and open source (license) utility for network discovery and security auditing.<br>
  134. &nbsp;&nbsp; <a href="https://github.com/zmap/zmap"><b>zmap</b></a> - is a fast single packet network scanner designed for Internet-wide network surveys.<br>
  135. &nbsp;&nbsp; <a href="https://github.com/RustScan/RustScan"><b>Rust Scan</b></a> - to find all open ports faster than Nmap.<br>
  136. &nbsp;&nbsp; <a href="https://github.com/robertdavidgraham/masscan"><b>masscan</b></a> - is the fastest Internet port scanner, spews SYN packets asynchronously.<br>
  137. &nbsp;&nbsp; <a href="https://github.com/gvb84/pbscan"><b>pbscan</b></a> - is a faster and more efficient stateless SYN scanner and banner grabber.<br>
  138. &nbsp;&nbsp; <a href="http://www.hping.org/"><b>hping</b></a> - is a command-line oriented TCP/IP packet assembler/analyzer.<br>
  139. &nbsp;&nbsp; <a href="https://github.com/traviscross/mtr"><b>mtr</b></a> - is a tool that combines the functionality of the 'traceroute' and 'ping' programs in a single tool.<br>
  140. &nbsp;&nbsp; <a href="https://github.com/mehrdadrad/mylg"><b>mylg</b></a> - utility which combines the functions of the different network probes in one diagnostic tool.<br>
  141. &nbsp;&nbsp; <a href="http://netcat.sourceforge.net/"><b>netcat</b></a> - utility which reads and writes data across network connections, using the TCP/IP protocol.<br>
  142. &nbsp;&nbsp; <a href="http://www.dest-unreach.org/socat/"><b>socat</b></a> - utility which transfers data between two objects.<br>
  143. &nbsp;&nbsp; <a href="https://www.tcpdump.org/"><b>tcpdump</b></a> - is a powerful command-line packet analyzer.<br>
  144. &nbsp;&nbsp; <a href="https://www.wireshark.org/docs/man-pages/tshark.html"><b>tshark</b></a> - is a tool that allows us to dump and analyze network traffic (wireshark cli).<br>
  145. &nbsp;&nbsp; <a href="https://termshark.io/"><b>Termshark</b></a> - is a simple terminal user-interface for tshark.<br>
  146. &nbsp;&nbsp; <a href="https://github.com/jpr5/ngrep"><b>ngrep</b></a> - is like GNU grep applied to the network layer.<br>
  147. &nbsp;&nbsp; <a href="http://netsniff-ng.org/"><b>netsniff-ng</b></a> - is a Swiss army knife for your daily Linux network plumbing if you will.<br>
  148. &nbsp;&nbsp; <a href="https://github.com/mechpen/sockdump"><b>sockdump</b></a> - dump unix domain socket traffic.<br>
  149. &nbsp;&nbsp; <a href="https://github.com/google/stenographer"><b>stenographer</b></a> - is a packet capture solution which aims to quickly spool all packets to disk.<br>
  150. &nbsp;&nbsp; <a href="https://github.com/sachaos/tcpterm"><b>tcpterm</b></a> - visualize packets in TUI.<br>
  151. &nbsp;&nbsp; <a href="https://github.com/tgraf/bmon"><b>bmon</b></a> - is a monitoring and debugging tool to capture networking related statistics and prepare them visually.<br>
  152. &nbsp;&nbsp; <a href="http://iptraf.seul.org/2.6/manual.html#installation"><b>iptraf-ng</b></a> - is a console-based network monitoring program for Linux that displays information about IP traffic.<br>
  153. &nbsp;&nbsp; <a href="https://github.com/vergoh/vnstat"><b>vnstat</b></a> - is a network traffic monitor for Linux and BSD.<br>
  154. &nbsp;&nbsp; <a href="https://iperf.fr/"><b>iPerf3</b></a> - is a tool for active measurements of the maximum achievable bandwidth on IP networks.<br>
  155. &nbsp;&nbsp; <a href="https://github.com/Microsoft/Ethr"><b>ethr</b></a> - is a Network Performance Measurement Tool for TCP, UDP & HTTP.<br>
  156. &nbsp;&nbsp; <a href="https://github.com/jwbensley/Etherate"><b>Etherate</b></a> - is a Linux CLI based Ethernet and MPLS traffic testing tool.<br>
  157. &nbsp;&nbsp; <a href="https://github.com/mpolden/echoip"><b>echoip</b></a> - is a IP address lookup service.<br>
  158. &nbsp;&nbsp; <a href="https://github.com/troglobit/nemesis"><b>Nemesis</b></a> - packet manipulation CLI tool; craft and inject packets of several protocols.<br>
  159. &nbsp;&nbsp; <a href="https://github.com/packetfu/packetfu"><b>packetfu</b></a> - a mid-level packet manipulation library for Ruby.<br>
  160. &nbsp;&nbsp; <a href="https://scapy.net/"><b>Scapy</b></a> - packet manipulation library; forge, send, decode, capture packets of a wide number of protocols.<br>
  161. &nbsp;&nbsp; <a href="https://github.com/SecureAuthCorp/impacket"><b>impacket</b></a> - is a collection of Python classes for working with network protocols.<br>
  162. &nbsp;&nbsp; <a href="https://github.com/arthepsy/ssh-audit"><b>ssh-audit</b></a> - is a tool for SSH server auditing.<br>
  163. &nbsp;&nbsp; <a href="https://aria2.github.io/"><b>aria2</b></a> - is a lightweight multi-protocol & multi-source command-line download utility.<br>
  164. &nbsp;&nbsp; <a href="https://github.com/x-way/iptables-tracer"><b>iptables-tracer</b></a> - observe the path of packets through the iptables chains.<br>
  165. &nbsp;&nbsp; <a href="https://github.com/proabiral/inception"><b>inception</b></a> - a highly configurable tool to check for whatever you like against any number of hosts.<br>
  166. &nbsp;&nbsp; <a href="https://mremoteng.org/"><b>mRemoteNG</b></a> - a fork of mRemote, multi-tabbed PuTTy on steroids!<br>
  167. </p>
  168. ##### :black_small_square: Network (DNS)
  169. <p>
  170. &nbsp;&nbsp; <a href="https://github.com/farrokhi/dnsdiag"><b>dnsdiag</b></a> - is a DNS diagnostics and performance measurement tools.<br>
  171. &nbsp;&nbsp; <a href="https://github.com/mschwager/fierce"><b>fierce</b></a> - is a DNS reconnaissance tool for locating non-contiguous IP space.<br>
  172. &nbsp;&nbsp; <a href="https://github.com/subfinder/subfinder"><b>subfinder</b></a> - is a subdomain discovery tool that discovers valid subdomains for websites.<br>
  173. &nbsp;&nbsp; <a href="https://github.com/aboul3la/Sublist3r"><b>sublist3r</b></a> - is a fast subdomains enumeration tool for penetration testers.<br>
  174. &nbsp;&nbsp; <a href="https://github.com/OWASP/Amass"><b>amass</b></a> - is tool that obtains subdomain names by scraping data sources, crawling web archives, and more.<br>
  175. &nbsp;&nbsp; <a href="https://github.com/google/namebench"><b>namebench</b></a> - provides personalized DNS server recommendations based on your browsing history.<br>
  176. &nbsp;&nbsp; <a href="https://github.com/blechschmidt/massdns"><b>massdns</b></a> - is a high-performance DNS stub resolver for bulk lookups and reconnaissance.<br>
  177. &nbsp;&nbsp; <a href="https://github.com/guelfoweb/knock"><b>knock</b></a> - is a tool to enumerate subdomains on a target domain through a wordlist.<br>
  178. &nbsp;&nbsp; <a href="https://github.com/DNS-OARC/dnsperf"><b>dnsperf</b></a> - DNS performance testing tools.<br>
  179. &nbsp;&nbsp; <a href="https://github.com/jedisct1/dnscrypt-proxy"><b>dnscrypt-proxy 2</b></a> - a flexible DNS proxy, with support for encrypted DNS protocols.<br>
  180. &nbsp;&nbsp; <a href="https://github.com/dnsdb/dnsdbq"><b>dnsdbq</b></a> - API client providing access to passive DNS database systems.<br>
  181. &nbsp;&nbsp; <a href="https://github.com/looterz/grimd"><b>grimd</b></a> - fast dns proxy, built to black-hole internet advertisements and malware servers.<br>
  182. &nbsp;&nbsp; <a href="https://github.com/elceef/dnstwist"><b>dnstwist</b></a> - detect typosquatters, phishing attacks, fraud, and brand impersonation.<br>
  183. </p>
  184. ##### :black_small_square: Network (HTTP)
  185. <p>
  186. &nbsp;&nbsp; <a href="https://curl.haxx.se/"><b>curl</b></a> - is a command line tool and library for transferring data with URLs.<br>
  187. &nbsp;&nbsp; <a href="https://gitlab.com/davidjpeacock/kurly"><b>kurly</b></a> - is an alternative to the widely popular curl program, written in Golang.<br>
  188. &nbsp;&nbsp; <a href="https://github.com/jakubroztocil/httpie"><b>HTTPie</b></a> - is an user-friendly HTTP client.<br>
  189. &nbsp;&nbsp; <a href="https://github.com/asciimoo/wuzz"><b>wuzz</b></a> - is an interactive cli tool for HTTP inspection.<br>
  190. &nbsp;&nbsp; <a href="https://github.com/summerwind/h2spec"><b>h2spec</b></a> - is a conformance testing tool for HTTP/2 implementation.<br>
  191. &nbsp;&nbsp; <a href="https://github.com/gildasio/h2t"><b>h2t</b></a> - is a simple tool to help sysadmins to hardening their websites.<br>
  192. &nbsp;&nbsp; <a href="https://github.com/trimstray/htrace.sh"><b>htrace.sh</b></a> - is a simple Swiss Army knife for http/https troubleshooting and profiling.<br>
  193. &nbsp;&nbsp; <a href="https://github.com/reorx/httpstat"><b>httpstat</b></a> - is a tool that visualizes curl statistics in a way of beauty and clarity.<br>
  194. &nbsp;&nbsp; <a href="https://github.com/gchaincl/httplab"><b>httplab</b></a> - is an interactive web server.<br>
  195. &nbsp;&nbsp; <a href="https://lynx.browser.org/"><b>Lynx</b></a> - is a text browser for the World Wide Web.<br>
  196. &nbsp;&nbsp; <a href="https://github.com/browsh-org/browsh/"><b>Browsh</b></a> - is a fully interactive, real-time, and modern text-based browser.<br>
  197. &nbsp;&nbsp; <a href="https://github.com/dhamaniasad/HeadlessBrowsers"><b>HeadlessBrowsers</b></a> - a list of (almost) all headless web browsers in existence.<br>
  198. &nbsp;&nbsp; <a href="https://httpd.apache.org/docs/2.4/programs/ab.html"><b>ab</b></a> - is a single-threaded command line tool for measuring the performance of HTTP web servers.<br>
  199. &nbsp;&nbsp; <a href="https://www.joedog.org/siege-home/"><b>siege</b></a> - is an http load testing and benchmarking utility.<br>
  200. &nbsp;&nbsp; <a href="https://github.com/wg/wrk"><b>wrk</b></a> - is a modern HTTP benchmarking tool capable of generating significant load.<br>
  201. &nbsp;&nbsp; <a href="https://github.com/giltene/wrk2"><b>wrk2</b></a> - is a constant throughput, correct latency recording variant of wrk.<br>
  202. &nbsp;&nbsp; <a href="https://github.com/tsenart/vegeta"><b>vegeta</b></a> - is a constant throughput, correct latency recording variant of wrk.<br>
  203. &nbsp;&nbsp; <a href="https://github.com/codesenberg/bombardier"><b>bombardier</b></a> - is a fast cross-platform HTTP benchmarking tool written in Go.<br>
  204. &nbsp;&nbsp; <a href="https://github.com/cmpxchg16/gobench"><b>gobench</b></a> - http/https load testing and benchmarking tool.<br>
  205. &nbsp;&nbsp; <a href="https://github.com/rakyll/hey"><b>hey</b></a> - HTTP load generator, ApacheBench (ab) replacement, formerly known as rakyll/boom.<br>
  206. &nbsp;&nbsp; <a href="https://github.com/tarekziade/boom"><b>boom</b></a> - is a script you can use to quickly smoke-test your web app deployment.<br>
  207. &nbsp;&nbsp; <a href="https://github.com/shekyan/slowhttptest"><b>SlowHTTPTest</b></a> - is a tool that simulates some Application Layer Denial of Service attacks by prolonging HTTP.<br>
  208. &nbsp;&nbsp; <a href="https://github.com/OJ/gobuster"><b>gobuster</b></a> - is a free and open source directory/file & DNS busting tool written in Go.<br>
  209. &nbsp;&nbsp; <a href="https://github.com/ssllabs/ssllabs-scan"><b>ssllabs-scan</b></a> - command-line reference-implementation client for SSL Labs APIs.<br>
  210. &nbsp;&nbsp; <a href="https://github.com/mozilla/http-observatory"><b>http-observatory</b></a> - Mozilla HTTP Observatory cli version.<br>
  211. &nbsp;&nbsp; <a href="https://hurl.dev"><b>Hurl</b></a> - is a command line tool to run and test HTTP requests with plain text.<br>
  212. </p>
  213. ##### :black_small_square: SSL
  214. <p>
  215. &nbsp;&nbsp; <a href="https://www.openssl.org/"><b>openssl</b></a> - is a robust, commercial-grade, and full-featured toolkit for the TLS and SSL protocols.<br>
  216. &nbsp;&nbsp; <a href="https://gnutls.org/manual/html_node/gnutls_002dcli-Invocation.html"><b>gnutls-cli</b></a> - client program to set up a TLS connection to some other computer.<br>
  217. &nbsp;&nbsp; <a href="https://github.com/nabla-c0d3/sslyze"><b>sslyze
  218. </b></a> - fast and powerful SSL/TLS server scanning library.<br>
  219. &nbsp;&nbsp; <a href="https://github.com/rbsec/sslscan"><b>sslscan</b></a> - tests SSL/TLS enabled services to discover supported cipher suites.<br>
  220. &nbsp;&nbsp; <a href="https://github.com/drwetter/testssl.sh"><b>testssl.sh</b></a> - testing TLS/SSL encryption anywhere on any port.<br>
  221. &nbsp;&nbsp; <a href="https://github.com/mozilla/cipherscan"><b>cipherscan</b></a> - a very simple way to find out which SSL ciphersuites are supported by a target.<br>
  222. &nbsp;&nbsp; <a href="http://www.tarsnap.com/spiped.html"><b>spiped</b></a> - is a utility for creating symmetrically encrypted and authenticated pipes between socket addresses.<br>
  223. &nbsp;&nbsp; <a href="https://github.com/certbot/certbot"><b>Certbot</b></a> - is EFF's tool to obtain certs from Let's Encrypt and (optionally) auto-enable HTTPS on your server.<br>
  224. &nbsp;&nbsp; <a href="https://github.com/FiloSottile/mkcert"><b>mkcert</b></a> - simple zero-config tool to make locally trusted development certificates with any names you'd like.<br>
  225. &nbsp;&nbsp; <a href="https://github.com/square/certstrap"><b>certstrap</b></a> - tools to bootstrap CAs, certificate requests, and signed certificates.<br>
  226. &nbsp;&nbsp; <a href="https://github.com/yassineaboukir/sublert"><b>Sublert</b></a> - is a security and reconnaissance tool to automatically monitor new subdomains.<br>
  227. &nbsp;&nbsp; <a href="https://github.com/trimstray/mkchain"><b>mkchain</b></a> - open source tool to help you build a valid SSL certificate chain.<br>
  228. &nbsp;&nbsp; <a href="https://github.com/Matty9191/ssl-cert-check"><b>ssl-cert-check</b></a> - SSL Certification Expiration Checker.<br>
  229. </p>
  230. ##### :black_small_square: Security
  231. <p>
  232. &nbsp;&nbsp; <a href="https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/5/html/deployment_guide/ch-selinux"><b>SELinux</b></a> - provides a flexible Mandatory Access Control (MAC) system built into the Linux kernel.<br>
  233. &nbsp;&nbsp; <a href="https://wiki.ubuntu.com/AppArmor"><b>AppArmor</b></a> - proactively protects the operating system and applications from external or internal threats.<br>
  234. &nbsp;&nbsp; <a href="https://github.com/grapheneX/grapheneX"><b>grapheneX</b></a> - Automated System Hardening Framework.<br>
  235. &nbsp;&nbsp; <a href="https://github.com/dev-sec/"><b>DevSec Hardening Framework</b></a> - Security + DevOps: Automatic Server Hardening.<br>
  236. </p>
  237. ##### :black_small_square: Auditing Tools
  238. <p>
  239. &nbsp;&nbsp; <a href="https://www.ossec.net/"><b>ossec</b></a> - actively monitoring all aspects of system activity with file integrity monitoring.<br>
  240. &nbsp;&nbsp; <a href="https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/chap-system_auditing"><b>auditd</b></a> - provides a way to track security-relevant information on your system.<br>
  241. &nbsp;&nbsp; <a href="https://www.nongnu.org/tiger/"><b>Tiger</b></a> - is a security tool that can be use both as a security audit and intrusion detection system.<br>
  242. &nbsp;&nbsp; <a href="https://cisofy.com/lynis/"><b>Lynis</b></a> - battle-tested security tool for systems running Linux, macOS, or Unix-based operating system.<br>
  243. &nbsp;&nbsp; <a href="https://github.com/rebootuser/LinEnum"><b>LinEnum</b></a> - scripted Local Linux Enumeration & Privilege Escalation Checks.<br>
  244. &nbsp;&nbsp; <a href="https://github.com/installation/rkhunter"><b>Rkhunter</b></a> - scanner tool for Linux systems that scans backdoors, rootkits and local exploits on your systems.<br>
  245. &nbsp;&nbsp; <a href="https://github.com/hasherezade/pe-sieve"><b>PE-sieve</b></a> - is a light-weight tool that helps to detect malware running on the system.<br>
  246. &nbsp;&nbsp; <a href="https://github.com/carlospolop/privilege-escalation-awesome-scripts-suite"><b>PEASS</b></a> - privilege escalation tools for Windows and Linux/Unix and MacOS.<br>
  247. </p>
  248. ##### :black_small_square: System Diagnostics/Debuggers
  249. <p>
  250. &nbsp;&nbsp; <a href="https://github.com/strace/strace"><b>strace</b></a> - diagnostic, debugging and instructional userspace utility for Linux.<br>
  251. &nbsp;&nbsp; <a href="http://dtrace.org/blogs/about/"><b>DTrace</b></a> - is a performance analysis and troubleshooting tool.<br>
  252. &nbsp;&nbsp; <a href="https://en.wikipedia.org/wiki/Ltrace"><b>ltrace</b></a> - is a library call tracer, used to trace calls made by programs to library functions.<br>
  253. &nbsp;&nbsp; <a href="https://github.com/brainsmoke/ptrace-burrito"><b>ptrace-burrito</b></a> - is a friendly wrapper around ptrace.<br>
  254. &nbsp;&nbsp; <a href="https://github.com/brendangregg/perf-tools"><b>perf-tools</b></a> - performance analysis tools based on Linux perf_events (aka perf) and ftrace.<br>
  255. &nbsp;&nbsp; <a href="https://github.com/iovisor/bpftrace"><b>bpftrace</b></a> - high-level tracing language for Linux eBPF.<br>
  256. &nbsp;&nbsp; <a href="https://github.com/draios/sysdig"><b>sysdig</b></a> - system exploration and troubleshooting tool with first class support for containers.<br>
  257. &nbsp;&nbsp; <a href="http://www.valgrind.org/"><b>Valgrind</b></a> - is an instrumentation framework for building dynamic analysis tools.<br>
  258. &nbsp;&nbsp; <a href="https://github.com/gperftools/gperftools"><b>gperftools</b></a> - high-performance multi-threaded malloc() implementation, plus some performance analysis tools.<br>
  259. &nbsp;&nbsp; <a href="https://nicolargo.github.io/glances/"><b>glances</b></a> - cross-platform system monitoring tool written in Python.<br>
  260. &nbsp;&nbsp; <a href="https://github.com/hishamhm/htop"><b>htop</b></a> - interactive text-mode process viewer for Unix systems. It aims to be a better 'top'.<br>
  261. &nbsp;&nbsp; <a href="https://github.com/aristocratos/bashtop"><b>bashtop</b></a> - Linux resource monitor written in pure Bash.<br>
  262. &nbsp;&nbsp; <a href="http://nmon.sourceforge.net/pmwiki.php"><b>nmon</b></a> - a single executable for performance monitoring and data analysis.<br>
  263. &nbsp;&nbsp; <a href="https://www.atoptool.nl/"><b>atop</b></a> - ASCII performance monitor. Includes statistics for CPU, memory, disk, swap, network, and processes.<br>
  264. &nbsp;&nbsp; <a href="https://en.wikipedia.org/wiki/Lsof"><b>lsof</b></a> - displays in its output information about files that are opened by processes.<br>
  265. &nbsp;&nbsp; <a href="http://www.brendangregg.com/flamegraphs.html"><b>FlameGraph</b></a> - stack trace visualizer.<br>
  266. &nbsp;&nbsp; <a href="https://github.com/zevv/lsofgraph"><b>lsofgraph</b></a> - convert Unix lsof output to a graph showing FIFO and UNIX interprocess communication.<br>
  267. &nbsp;&nbsp; <a href="https://github.com/mozilla/rr"><b>rr</b></a> - is a lightweight tool for recording, replaying and debugging execution of applications.<br>
  268. &nbsp;&nbsp; <a href="https://pcp.io/index.html"><b>Performance Co-Pilot</b></a> - a system performance analysis toolkit.<br>
  269. &nbsp;&nbsp; <a href="https://github.com/sharkdp/hexyl"><b>hexyl</b></a> - a command-line hex viewer.<br>
  270. &nbsp;&nbsp; <a href="https://github.com/p403n1x87/austin"><b>Austin</b></a> - Python frame stack sampler for CPython.<br>
  271. </p>
  272. ##### :black_small_square: Log Analyzers
  273. <p>
  274. &nbsp;&nbsp; <a href="https://github.com/rcoh/angle-grinder"><b>angle-grinder</b></a> - slice and dice log files on the command line.<br>
  275. &nbsp;&nbsp; <a href="https://lnav.org"><b>lnav</b></a> - log file navigator with search and automatic refresh.<br>
  276. &nbsp;&nbsp; <a href="https://goaccess.io/"><b>GoAccess</b></a> - real-time web log analyzer and interactive viewer that runs in a terminal.<br>
  277. &nbsp;&nbsp; <a href="https://github.com/lebinh/ngxtop"><b>ngxtop</b></a> - real-time metrics for nginx server.<br>
  278. </p>
  279. ##### :black_small_square: Databases
  280. <p>
  281. &nbsp;&nbsp; <a href="https://github.com/xo/usql"><b>usql</b></a> - universal command-line interface for SQL databases.<br>
  282. &nbsp;&nbsp; <a href="https://github.com/dbcli/pgcli"><b>pgcli</b></a> - postgres CLI with autocompletion and syntax highlighting.<br>
  283. &nbsp;&nbsp; <a href="https://github.com/dbcli/mycli"><b>mycli</b></a> - terminal client for MySQL with autocompletion and syntax highlighting.<br>
  284. &nbsp;&nbsp; <a href="https://github.com/dbcli/litecli"><b>litecli</b></a> - SQLite CLI with autocompletion and syntax highlighting.<br>
  285. &nbsp;&nbsp; <a href="https://github.com/dbcli/mssql-cli"><b>mssql-cli</b></a> - SQL Server CLI with autocompletion and syntax highlighting.<br>
  286. &nbsp;&nbsp; <a href="https://github.com/osquery/osquery"><b>OSQuery</b></a> - is a SQL powered operating system instrumentation, monitoring, and analytics framework.<br>
  287. &nbsp;&nbsp; <a href="https://github.com/ankane/pgsync"><b>pgsync</b></a> - sync data from one Postgres database to another.<br>
  288. &nbsp;&nbsp; <a href="https://github.com/laixintao/iredis"><b>iredis</b></a> - a terminal client for redis with autocompletion and syntax highlighting.<br>
  289. &nbsp;&nbsp; <a href="https://www.schemacrawler.com/diagramming.html"><b>SchemaCrawler</b></a> - generates an E-R diagram of your database.<br>
  290. </p>
  291. ##### :black_small_square: TOR
  292. <p>
  293. &nbsp;&nbsp; <a href="https://github.com/GouveaHeitor/nipe"><b>Nipe</b></a> - script to make Tor Network your default gateway.<br>
  294. &nbsp;&nbsp; <a href="https://github.com/trimstray/multitor"><b>multitor</b></a> - a tool that lets you create multiple TOR instances with a load-balancing.<br>
  295. </p>
  296. ##### :black_small_square: Messengers/IRC Clients
  297. <p>
  298. &nbsp;&nbsp; <a href="https://irssi.org"><b>Irssi</b></a> - is a free open source terminal based IRC client.<br>
  299. &nbsp;&nbsp; <a href="https://weechat.org/"><b>WeeChat</b></a> - is an extremely extensible and lightweight IRC client.<br>
  300. </p>
  301. ##### :black_small_square: Productivity
  302. <p>
  303. &nbsp;&nbsp; <a href="https://taskwarrior.org"><b>taskwarrior</b></a> - task management system, todo list <br>
  304. </p>
  305. ##### :black_small_square: Other
  306. <p>
  307. &nbsp;&nbsp; <a href="https://github.com/skx/sysadmin-util"><b>sysadmin-util</b></a> - tools for Linux/Unix sysadmins.<br>
  308. &nbsp;&nbsp; <a href="http://inotify.aiken.cz/"><b>incron</b></a> - is an inode-based filesystem notification technology.<br>
  309. &nbsp;&nbsp; <a href="https://github.com/axkibe/lsyncd"><b>lsyncd</b></a> - synchronizes local directories with remote targets (Live Syncing Daemon).<br>
  310. &nbsp;&nbsp; <a href="https://github.com/rgburke/grv"><b>GRV</b></a> - is a terminal based interface for viewing Git repositories.<br>
  311. &nbsp;&nbsp; <a href="https://jonas.github.io/tig/"><b>Tig</b></a> - text-mode interface for Git.<br>
  312. &nbsp;&nbsp; <a href="https://github.com/tldr-pages/tldr"><b>tldr</b></a> - simplified and community-driven man pages.<br>
  313. &nbsp;&nbsp; <a href="https://github.com/mholt/archiver"><b>archiver</b></a> - easily create and extract .zip, .tar, .tar.gz, .tar.bz2, .tar.xz, .tar.lz4, .tar.sz, and .rar.<br>
  314. &nbsp;&nbsp; <a href="https://github.com/tj/commander.js"><b>commander.js</b></a> - minimal CLI creator in JavaScript.<br>
  315. &nbsp;&nbsp; <a href="https://github.com/tomnomnom/gron"><b>gron</b></a> - make JSON greppable!<br>
  316. &nbsp;&nbsp; <a href="https://github.com/itchyny/bed"><b>bed</b></a> - binary editor written in Go.<br>
  317. </p>
  318. #### GUI Tools &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  319. ##### :black_small_square: Terminal emulators
  320. <p>
  321. &nbsp;&nbsp; <a href="https://github.com/Guake/guake"><b>Guake</b></a> - is a dropdown terminal made for the GNOME desktop environment.<br>
  322. &nbsp;&nbsp; <a href="https://gnometerminator.blogspot.com/p/introduction.html"><b>Terminator</b></a> - is based on GNOME Terminal, useful features for sysadmins and other users.<br>
  323. &nbsp;&nbsp; <a href="https://sw.kovidgoyal.net/kitty/"><b>Kitty</b></a> - is a GPU based terminal emulator that supports smooth scrolling and images.<br>
  324. &nbsp;&nbsp; <a href="https://github.com/alacritty/alacritty"><b>Alacritty</b></a> - is a fast, cross-platform, OpenGL terminal emulator.<br>
  325. </p>
  326. ##### :black_small_square: Network
  327. <p>
  328. &nbsp;&nbsp; <a href="https://www.wireshark.org/"><b>Wireshark</b></a> - is the world’s foremost and widely-used network protocol analyzer.<br>
  329. &nbsp;&nbsp; <a href="https://www.ettercap-project.org/"><b>Ettercap</b></a> - is a comprehensive network monitor tool.<br>
  330. &nbsp;&nbsp; <a href="https://etherape.sourceforge.io/"><b>EtherApe</b></a> - is a graphical network monitoring solution.<br>
  331. &nbsp;&nbsp; <a href="https://packetsender.com/"><b>Packet Sender</b></a> - is a networking utility for packet generation and built-in UDP/TCP/SSL client and servers.<br>
  332. &nbsp;&nbsp; <a href="https://ostinato.org/"><b>Ostinato</b></a> - is a packet crafter and traffic generator.<br>
  333. &nbsp;&nbsp; <a href="https://jmeter.apache.org/"><b>JMeter™</b></a> - open source software to load test functional behavior and measure performance.<br>
  334. &nbsp;&nbsp; <a href="https://github.com/locustio/locust"><b>locust</b></a> - scalable user load testing tool written in Python.<br>
  335. </p>
  336. ##### :black_small_square: Browsers
  337. <p>
  338. &nbsp;&nbsp; <a href="https://www.torproject.org/"><b>TOR Browser</b></a> - protect your privacy and defend yourself against network surveillance and traffic analysis.<br>
  339. </p>
  340. ##### :black_small_square: Password Managers
  341. <p>
  342. &nbsp;&nbsp; <a href="https://keepassxc.org/"><b>KeePassXC</b></a> - store your passwords safely and auto-type them into your everyday websites and apps.<br>
  343. &nbsp;&nbsp; <a href="https://bitwarden.com/"><b>Bitwarden</b></a> - open source password manager with built-in sync.<br>
  344. &nbsp;&nbsp; <a href="https://github.com/dani-garcia/vaultwarden/"><b>Vaultwarden</b></a> - unofficial Bitwarden compatible server written in Rust.<br>
  345. </p>
  346. ##### :black_small_square: Messengers/IRC Clients
  347. <p>
  348. &nbsp;&nbsp; <a href="https://hexchat.github.io/index.html"><b>HexChat</b></a> - is an IRC client based on XChat.<br>
  349. &nbsp;&nbsp; <a href="https://pidgin.im/"><b>Pidgin</b></a> - is an easy to use and free chat client used by millions.<br>
  350. </p>
  351. ##### :black_small_square: Messengers (end-to-end encryption)
  352. <p>
  353. &nbsp;&nbsp; <a href="https://www.signal.org/"><b>Signal</b></a> - is an encrypted communications app.<br>
  354. &nbsp;&nbsp; <a href="https://wire.com/en/"><b>Wire</b></a> - secure messaging, file sharing, voice calls and video conferences.<br>
  355. &nbsp;&nbsp; <a href="https://github.com/prof7bit/TorChat"><b>TorChat</b></a> - decentralized anonymous instant messenger on top of Tor Hidden Services.<br>
  356. &nbsp;&nbsp; <a href="https://matrix.org/"><b>Matrix</b></a> - an open network for secure, decentralized, real-time communication.<br>
  357. </p>
  358. ##### :black_small_square: Text editors
  359. <p>
  360. &nbsp;&nbsp; <a href="https://www.sublimetext.com/3"><b>Sublime Text</b></a> - is a lightweight, cross-platform code editor known for its speed, ease of use.<br>
  361. &nbsp;&nbsp; <a href="https://code.visualstudio.com/"><b>Visual Studio Code</b></a> - an open-source and free source code editor developed by Microsoft.<br>
  362. &nbsp;&nbsp; <a href="https://atom.io/"><b>Atom</b></a> - a hackable text editor for the 21st Century.<br>
  363. </p>
  364. #### Web Tools &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  365. ##### :black_small_square: Browsers
  366. <p>
  367. &nbsp;&nbsp; <a href="https://www.ssllabs.com/ssltest/viewMyClient.html"><b>SSL/TLS Capabilities of Your Browser</b></a> - test your browser's SSL implementation.<br>
  368. &nbsp;&nbsp; <a href="https://caniuse.com/"><b>Can I use</b></a> - provides up-to-date browser support tables for support of front-end web technologies.<br>
  369. &nbsp;&nbsp; <a href="https://panopticlick.eff.org/"><b>Panopticlick 3.0</b></a> - is your browser safe against tracking?<br>
  370. &nbsp;&nbsp; <a href="https://privacy.net/analyzer/"><b>Privacy Analyzer</b></a> - see what data is exposed from your browser.<br>
  371. &nbsp;&nbsp; <a href="https://browserleaks.com/"><b>Web Browser Security</b></a> - it's all about Web Browser fingerprinting.<br>
  372. &nbsp;&nbsp; <a href="https://www.howsmyssl.com/"><b>How's My SSL?</b></a> - help a web server developer learn what real world TLS clients were capable of.<br>
  373. &nbsp;&nbsp; <a href="https://suche.org/sslClientInfo"><b>sslClientInfo</b></a> - client test (incl TLSv1.3 information).<br>
  374. </p>
  375. ##### :black_small_square: SSL/Security
  376. <p>
  377. &nbsp;&nbsp; <a href="https://www.ssllabs.com/ssltest/"><b>SSLLabs Server Test</b></a> - performs a deep analysis of the configuration of any SSL web server.<br>
  378. &nbsp;&nbsp; <a href="https://dev.ssllabs.com/ssltest/"><b>SSLLabs Server Test (DEV)</b></a> - performs a deep analysis of the configuration of any SSL web server.<br>
  379. &nbsp;&nbsp; <a href="https://www.immuniweb.com/ssl/"><b>ImmuniWeb® SSLScan</b></a> - test SSL/TLS (PCI DSS, HIPAA and NIST).<br>
  380. &nbsp;&nbsp; <a href="https://www.jitbit.com/sslcheck/"><b>SSL Check</b></a> - scan your website for non-secure content.<br>
  381. &nbsp;&nbsp; <a href="http://www.ssltools.com"><b>SSL Scanner</b></a> - analyze website security.<br>
  382. &nbsp;&nbsp; <a href="https://cryptcheck.fr/"><b>CryptCheck</b></a> - test your TLS server configuration (e.g. ciphers).<br>
  383. &nbsp;&nbsp; <a href="https://urlscan.io/"><b>urlscan.io</b></a> - service to scan and analyse websites.<br>
  384. &nbsp;&nbsp; <a href="https://report-uri.com/home/tools"><b>Report URI</b></a> - monitoring security policies like CSP and HPKP.<br>
  385. &nbsp;&nbsp; <a href="https://csp-evaluator.withgoogle.com/"><b>CSP Evaluator</b></a> - allows developers and security experts to check if a Content Security Policy.<br>
  386. &nbsp;&nbsp; <a href="https://uselesscsp.com/"><b>Useless CSP</b></a> - public list about CSP in some big players (might make them care a bit more).<br>
  387. &nbsp;&nbsp; <a href="https://whynohttps.com/"><b>Why No HTTPS?</b></a> - top 100 websites by Alexa rank not automatically redirecting insecure requests.<br>
  388. &nbsp;&nbsp; <a href="https://ciphersuite.info/"><b>TLS Cipher Suite Search</b></a>- cipher suite search engine.<br>
  389. &nbsp;&nbsp; <a href="https://github.com/RaymiiOrg/cipherli.st"><b>cipherli.st</b></a> - strong ciphers for Apache, Nginx, Lighttpd, and more.<b>*</b><br>
  390. &nbsp;&nbsp; <a href="https://2ton.com.au/dhtool/"><b>dhtool</b></a> - public Diffie-Hellman parameter service/tool.<br>
  391. &nbsp;&nbsp; <a href="https://badssl.com/"><b>badssl.com</b></a> - memorable site for testing clients against bad SSL configs.<br>
  392. &nbsp;&nbsp; <a href="https://tlsfun.de/"><b>tlsfun.de</b></a> - registered for various tests regarding the TLS/SSL protocol.<br>
  393. &nbsp;&nbsp; <a href="https://sslmate.com/caa/"><b>CAA Record Helper</b></a> - generate a CAA policy.<br>
  394. &nbsp;&nbsp; <a href="https://ccadb.org/resources"><b>Common CA Database</b></a> - repository of information about CAs, and their root and intermediate certificates.<br>
  395. &nbsp;&nbsp; <a href="https://certstream.calidog.io/"><b>CERTSTREAM</b></a> - real-time certificate transparency log update stream.<br>
  396. &nbsp;&nbsp; <a href="https://crt.sh/"><b>crt.sh</b></a> - discovers certificates by continually monitoring all of the publicly known CT.<br>
  397. &nbsp;&nbsp; <a href="https://www.hardenize.com/"><b>Hardenize</b></a> - deploy the security standards.<br>
  398. &nbsp;&nbsp; <a href="https://cryptcheck.fr/suite/"><b>Cipher suite compatibility</b></a> - test TLS cipher suite compatibility.<br>
  399. &nbsp;&nbsp; <a href="https://www.urlvoid.com/"><b>urlvoid</b></a> - this service helps you detect potentially malicious websites.<br>
  400. &nbsp;&nbsp; <a href="https://securitytxt.org/"><b>security.txt</b></a> - a proposed standard (generator) which allows websites to define security policies.<br>
  401. &nbsp;&nbsp; <a href="https://github.com/mozilla/ssl-config-generator"><b>ssl-config-generator</b></a> - help you follow the Mozilla Server Side TLS configuration guidelines.<br>
  402. &nbsp;&nbsp; <a href="https://github.com/mjol/TLScan"><b>TLScan</b></a> - pure python, SSL/TLS protocol and cipher scanner/enumerator.<br>
  403. </p>
  404. ##### :black_small_square: HTTP Headers & Web Linters
  405. <p>
  406. &nbsp;&nbsp; <a href="https://securityheaders.com/"><b>Security Headers</b></a> - analyse the HTTP response headers (with rating system to the results).<br>
  407. &nbsp;&nbsp; <a href="https://observatory.mozilla.org/"><b>Observatory by Mozilla</b></a> - set of tools to analyze your website.<br>
  408. &nbsp;&nbsp; <a href="https://webhint.io/"><b>webhint</b></a> - is a linting tool that will help you with your site's accessibility, speed, security, and more.<br>
  409. </p>
  410. ##### :black_small_square: DNS
  411. <p>
  412. &nbsp;&nbsp; <a href="http://viewdns.info/"><b>ViewDNS</b></a> - one source for free DNS related tools and information.<br>
  413. &nbsp;&nbsp; <a href="https://dnslookup.org/"><b>DNSLookup</b></a> - is an advanced DNS lookup tool.<br>
  414. &nbsp;&nbsp; <a href="https://dnslytics.com/"><b>DNSlytics</b></a> - online DNS investigation tool.<br>
  415. &nbsp;&nbsp; <a href="https://dnsspy.io/"><b>DNS Spy</b></a> - monitor, validate and verify your DNS configurations.<br>
  416. &nbsp;&nbsp; <a href="https://zonemaster.iis.se/en/"><b>Zonemaster</b></a> - helps you to control how your DNS works.<br>
  417. &nbsp;&nbsp; <a href="http://leafdns.com/"><b>Leaf DNS</b></a> - comprehensive DNS tester.<br>
  418. &nbsp;&nbsp; <a href="https://findsubdomains.com/"><b>Find subdomains online</b></a> - find subdomains for security assessment penetration test.<br>
  419. &nbsp;&nbsp; <a href="https://dnsdumpster.com/"><b>DNSdumpster</b></a> - dns recon & research, find & lookup dns records.<br>
  420. &nbsp;&nbsp; <a href="https://dnstable.com/"><b>DNS Table online</b></a> - search for DNS records by domain, IP, CIDR, ISP.<br>
  421. &nbsp;&nbsp; <a href="https://intodns.com/"><b>intoDNS</b></a> - DNS and mail server health checker.<br>
  422. &nbsp;&nbsp; <a href="http://www.zonecut.net/dns/"><b>DNS Bajaj</b></a> - check the delegation of your domain.<br>
  423. &nbsp;&nbsp; <a href="https://www.buddyns.com/delegation-lab/"><b>BuddyDNS Delegation LAB</b></a> - check, trace and visualize delegation of your domain.<br>
  424. &nbsp;&nbsp; <a href="https://dnssec-debugger.verisignlabs.com/"><b>dnssec-debugger</b></a> - DS or DNSKEY records validator.<br>
  425. &nbsp;&nbsp; <a href="http://ptrarchive.com/"><b>PTRarchive.com</b></a> - this site is responsible for the safekeeping of historical reverse DNS records.<br>
  426. &nbsp;&nbsp; <a href="http://xip.io/"><b>xip.io</b></a> - wildcard DNS for everyone.<br>
  427. &nbsp;&nbsp; <a href="https://nip.io/"><b>nip.io</b></a> - dead simple wildcard DNS for any IP Address.<br>
  428. &nbsp;&nbsp; <a href="https://ceipam.eu/en/dnslookup.php"><b>dnslookup (ceipam)</b></a> - one of the best DNS propagation checker (and not only).<br>
  429. &nbsp;&nbsp; <a href="https://whatsmydns.com"><b>What's My DNS</b></a> - DNS propagation checking tool.<br>
  430. &nbsp;&nbsp; <a href="https://blog.erbbysam.com/index.php/2019/02/09/dnsgrep/"><b>DNSGrep</b></a> - quickly searching large DNS datasets.<br>
  431. </p>
  432. ##### :black_small_square: Mail
  433. <p>
  434. &nbsp;&nbsp; <a href="https://luxsci.com/smtp-tls-checker"><b>smtp-tls-checker</b></a> - check an email domain for SMTP TLS support.<br>
  435. &nbsp;&nbsp; <a href="https://mxtoolbox.com/SuperTool.aspx"><b>MX Toolbox</b></a> - all of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.<br>
  436. &nbsp;&nbsp; <a href="https://www.checktls.com/index.html"><b>Secure Email</b></a> - complete email test tools for email technicians.<br>
  437. &nbsp;&nbsp; <a href="http://www.blacklistalert.org/"><b>blacklistalert</b></a> - checks to see if your domain is on a Real Time Spam Blacklist.<br>
  438. &nbsp;&nbsp; <a href="http://multirbl.valli.org/"><b>MultiRBL</b></a> - complete IP check for sending Mailservers.<br>
  439. &nbsp;&nbsp; <a href="https://dkimvalidator.com/"><b>DKIM SPF & Spam Assassin Validator</b></a> - checks mail authentication and scores messages with Spam Assassin.<br>
  440. </p>
  441. ##### :black_small_square: Encoders/Decoders and Regex testing
  442. <p>
  443. &nbsp;&nbsp; <a href="https://www.url-encode-decode.com/"><b>URL Encode/Decode</b></a> - tool from above to either encode or decode a string of text.<br>
  444. &nbsp;&nbsp; <a href="https://uncoder.io/"><b>Uncoder</b></a> - the online translator for search queries on log data.<br>
  445. &nbsp;&nbsp; <a href="https://regex101.com/"><b>Regex101</b></a> - online regex tester and debugger: PHP, PCRE, Python, Golang and JavaScript.<br>
  446. &nbsp;&nbsp; <a href="https://regexr.com/"><b>RegExr</b></a> - online tool to learn, build, & test Regular Expressions (RegEx / RegExp).<br>
  447. &nbsp;&nbsp; <a href="https://www.regextester.com/"><b>RegEx Testing</b></a> - online regex testing tool.<br>
  448. &nbsp;&nbsp; <a href="https://www.regexpal.com/"><b>RegEx Pal</b></a> - online regex testing tool + other tools.<br>
  449. &nbsp;&nbsp; <a href="https://gchq.github.io/CyberChef/"><b>The Cyber Swiss Army Knife</b></a> - a web app for encryption, encoding, compression and data analysis.<br>
  450. </p>
  451. ##### :black_small_square: Net-tools
  452. <p>
  453. &nbsp;&nbsp; <a href="https://toolbar.netcraft.com/site_report"><b>Netcraft</b></a> - detailed report about the site, helping you to make informed choices about their integrity.<b>*</b><br>
  454. &nbsp;&nbsp; <a href="https://atlas.ripe.net/"><b>RIPE NCC Atlas</b></a> - a global, open, distributed Internet measurement platform.<br>
  455. &nbsp;&nbsp; <a href="https://www.robtex.com/"><b>Robtex</b></a> - uses various sources to gather public information about IP numbers, domain names, host names, etc.<br>
  456. &nbsp;&nbsp; <a href="https://securitytrails.com/"><b>Security Trails</b></a> - APIs for Security Companies, Researchers and Teams.<br>
  457. &nbsp;&nbsp; <a href="https://tools.keycdn.com/curl"><b>Online Curl</b></a> - curl test, analyze HTTP Response Headers.<br>
  458. &nbsp;&nbsp; <a href="https://extendsclass.com/"><b>Online Tools for Developers</b></a> - HTTP API tools, testers, encoders, converters, formatters, and other tools.<br>
  459. &nbsp;&nbsp; <a href="https://ping.eu/"><b>Ping.eu</b></a> - online Ping, Traceroute, DNS lookup, WHOIS and others.<br>
  460. &nbsp;&nbsp; <a href="https://network-tools.com/"><b>Network-Tools</b></a> - network tools for webmasters, IT technicians & geeks.<br>
  461. &nbsp;&nbsp; <a href="https://bgpview.io/"><b>BGPview</b></a> - search for any ASN, IP, Prefix or Resource name.<br>
  462. &nbsp;&nbsp; <a href="https://isbgpsafeyet.com/"><b>Is BGP safe yet?</b></a> - check BGP (RPKI) security of ISPs and other major Internet players.<br>
  463. &nbsp;&nbsp; <a href="https://riseup.net/"><b>Riseup</b></a> - provides online communication tools for people and groups working on liberatory social change.<br>
  464. &nbsp;&nbsp; <a href="https://www.virustotal.com/gui/home/upload"><b>VirusTotal</b></a> - analyze suspicious files and URLs to detect types of malware.<br>
  465. </p>
  466. ##### :black_small_square: Privacy
  467. <p>
  468. &nbsp;&nbsp; <a href="https://www.privacyguides.org/"><b>privacyguides.org</b></a> - provides knowledge and tools to protect your privacy against global mass surveillance.<br>
  469. &nbsp;&nbsp; <a href="https://dnsprivacy.org/wiki/display/DP/DNS+Privacy+Test+Servers"><b>DNS Privacy Test Servers</b></a> - DNS privacy recursive servers list (with a 'no logging' policy).<br>
  470. </p>
  471. ##### :black_small_square: Code parsers/playgrounds
  472. <p>
  473. &nbsp;&nbsp; <a href="https://www.shellcheck.net/"><b>ShellCheck</b></a> - finds bugs in your shell scripts.<br>
  474. &nbsp;&nbsp; <a href="https://explainshell.com/"><b>explainshell</b></a> - get interactive help texts for shell commands.<br>
  475. &nbsp;&nbsp; <a href="https://jsbin.com/?html,output"><b>jsbin</b></a> - live pastebin for HTML, CSS & JavaScript, and more.<br>
  476. &nbsp;&nbsp; <a href="https://codesandbox.io/"><b>CodeSandbox</b></a> - online code editor for web application development.<br>
  477. &nbsp;&nbsp; <a href="http://sandbox.onlinephpfunctions.com/"><b>PHP Sandbox</b></a> - test your PHP code with this code tester.<br>
  478. &nbsp;&nbsp; <a href="https://www.repl.it/"><b>Repl.it</b></a> - an instant IDE to learn, build, collaborate, and host all in one place.<br>
  479. &nbsp;&nbsp; <a href="http://www.vclfiddle.net/"><b>vclFiddle</b></a> - is an online tool for experimenting with the Varnish Cache VCL.<br>
  480. &nbsp;&nbsp; <a href="https://github.com/hadolint/hadolint"><b>Haskell Dockerfile Linter</b></a> - a smarter Dockerfile linter that helps you build best practice Docker images.<br>
  481. </p>
  482. ##### :black_small_square: Performance
  483. <p>
  484. &nbsp;&nbsp; <a href="https://gtmetrix.com/"><b>GTmetrix</b></a> - analyze your site’s speed and make it faster.<br>
  485. &nbsp;&nbsp; <a href="https://performance.sucuri.net/"><b>Sucuri loadtimetester</b></a> - test here the
  486. performance of any of your sites from across the globe.<br>
  487. &nbsp;&nbsp; <a href="https://tools.pingdom.com/"><b>Pingdom Tools</b></a> - analyze your site’s speed around the world.<br>
  488. &nbsp;&nbsp; <a href="https://pingme.io/"><b>PingMe.io</b></a> - run website latency tests across multiple geographic regions.<br>
  489. &nbsp;&nbsp; <a href="https://developers.google.com/speed/pagespeed/insights/"><b>PageSpeed Insights</b></a> - analyze your site’s speed and make it faster.<br>
  490. &nbsp;&nbsp; <a href="https://web.dev/"><b>web.dev</b></a> - helps developers like you learn and apply the web's modern capabilities to your own sites and apps.<br>
  491. &nbsp;&nbsp; <a href="https://github.com/GoogleChrome/lighthouse"><b>Lighthouse</b></a> - automated auditing, performance metrics, and best practices for the web.<br>
  492. </p>
  493. ##### :black_small_square: Mass scanners (search engines)
  494. <p>
  495. &nbsp;&nbsp; <a href="https://censys.io/"><b>Censys</b></a> - platform that helps information security practitioners discover, monitor, and analyze devices.<br>
  496. &nbsp;&nbsp; <a href="https://www.shodan.io/"><b>Shodan</b></a> - the world's first search engine for Internet-connected devices.<br>
  497. &nbsp;&nbsp; <a href="https://2000.shodan.io/#/"><b>Shodan 2000</b></a> - this tool looks for randomly generated data from Shodan.<br>
  498. &nbsp;&nbsp; <a href="https://viz.greynoise.io/table"><b>GreyNoise</b></a> - mass scanner such as Shodan and Censys.<br>
  499. &nbsp;&nbsp; <a href="https://www.zoomeye.org/"><b>ZoomEye</b></a> - search engine for cyberspace that lets the user find specific network components.<br>
  500. &nbsp;&nbsp; <a href="https://netograph.io/"><b>netograph</b></a> - tools to monitor and understand deep structure of the web.<br>
  501. &nbsp;&nbsp; <a href="https://fofa.so/"><b>FOFA</b></a> - is a cyberspace search engine.<br>
  502. &nbsp;&nbsp; <a href="https://www.onyphe.io/"><b>onyphe</b></a> - is a search engine for open-source and cyber threat intelligence data collected.<br>
  503. &nbsp;&nbsp; <a href="https://intelx.io/"><b>IntelligenceX</b></a> - is a search engine and data archive.<br>
  504. &nbsp;&nbsp; <a href="https://app.binaryedge.io/"><b>binaryedge</b></a> - it scan the entire internet space and create real-time threat intelligence streams and reports.<br>
  505. &nbsp;&nbsp; <a href="https://spyse.com/"><b>Spyse</b></a> - Internet assets registry: networks, threats, web objects, etc.<br>
  506. &nbsp;&nbsp; <a href="https://wigle.net/"><b>wigle</b></a> - is a submission-based catalog of wireless networks. All the networks. Found by Everyone.<br>
  507. &nbsp;&nbsp; <a href="https://publicwww.com/"><b>PublicWWW</b></a> - find any alphanumeric snippet, signature or keyword in the web pages HTML, JS and CSS code.<br>
  508. &nbsp;&nbsp; <a href="https://inteltechniques.com/index.html"><b>IntelTechniques</b></a> - this repository contains hundreds of online search utilities.<br>
  509. &nbsp;&nbsp; <a href="https://hunter.io/"><b>hunter</b></a> - lets you find email addresses in seconds and connect with the people that matter for your business.<br>
  510. &nbsp;&nbsp; <a href="https://ghostproject.fr/"><b>GhostProject?</b></a> - search by full email address or username.<br>
  511. &nbsp;&nbsp; <a href="https://www.databreaches.live/"><b>databreaches</b></a> - was my email affected by data breach?<br>
  512. &nbsp;&nbsp; <a href="https://weleakinfo.com"><b>We Leak Info</b></a> - world's fastest and largest data breach search engine.<br>
  513. &nbsp;&nbsp; <a href="https://pulsedive.com/"><b>Pulsedive</b></a> - scans of malicious URLs, IPs, and domains, including port scans and web requests.<br>
  514. &nbsp;&nbsp; <a href="https://buckets.grayhatwarfare.com/"><b>Buckets by Grayhatwarfar</b></a> - database with public search for Open Amazon S3 Buckets and their contents.<br>
  515. &nbsp;&nbsp; <a href="https://vigilante.pw/"><b>Vigilante.pw</b></a> - the breached database directory.<br>
  516. &nbsp;&nbsp; <a href="https://builtwith.com/"><b>builtwith</b></a> - find out what websites are built with.<br>
  517. &nbsp;&nbsp; <a href="https://nerdydata.com/"><b>NerdyData</b></a> - search the web's source code for technologies, across millions of sites.<br>
  518. &nbsp;&nbsp; <a href="http://zorexeye.com/"><b>zorexeye</b></a> - search for sites, images, apps, softwares & more.<br>
  519. &nbsp;&nbsp; <a href="https://www.mmnt.net/"><b>Mamont's open FTP Index</b></a> - if a target has an open FTP site with accessible content it will be listed here.<br>
  520. &nbsp;&nbsp; <a href="https://osintframework.com/"><b>OSINT Framework</b></a> - focused on gathering information from free tools or resources.<br>
  521. &nbsp;&nbsp; <a href="https://www.maltiverse.com/search"><b>maltiverse</b></a> - is a service oriented to cybersecurity analysts.<br>
  522. &nbsp;&nbsp; <a href="https://leakedsource.ru/main/"><b>Leaked Source</b></a> - is a collaboration of data found online in the form of a lookup.<br>
  523. &nbsp;&nbsp; <a href="https://search.weleakinfo.com/"><b>We Leak Info</b></a> - to help everyday individuals secure their online life, avoiding getting hacked.<br>
  524. &nbsp;&nbsp; <a href="https://pipl.com/"><b>pipl</b></a> - is the place to find the person behind the email address, social username or phone number.<br>
  525. &nbsp;&nbsp; <a href="https://abuse.ch/"><b>abuse.ch</b></a> - is operated by a random swiss guy fighting malware for non-profit.<br>
  526. &nbsp;&nbsp; <a href="http://malc0de.com/database/"><b>malc0de</b></a> - malware search engine.<br>
  527. &nbsp;&nbsp; <a href="https://cybercrime-tracker.net/index.php"><b>Cybercrime Tracker</b></a> - monitors and tracks various malware families that are used to perpetrate cyber crimes.<br>
  528. &nbsp;&nbsp; <a href="https://github.com/eth0izzle/shhgit/"><b>shhgit</b></a> - find GitHub secrets in real time.<br>
  529. &nbsp;&nbsp; <a href="https://searchcode.com/"><b>searchcode</b></a> - helping you find real world examples of functions, API's and libraries.<br>
  530. &nbsp;&nbsp; <a href="http://www.insecam.org/"><b>Insecam</b></a> - the world biggest directory of online surveillance security cameras.<br>
  531. &nbsp;&nbsp; <a href="http://index-of.es/"><b>index-of</b></a> - contains great stuff like: security, hacking, reverse engineering, cryptography, programming etc.<br>
  532. &nbsp;&nbsp; <a href="https://opendata.rapid7.com/"><b>Rapid7 Labs Open Data</b></a> - is a great resources of datasets from Project Sonar.<br>
  533. &nbsp;&nbsp; <a href="https://webtechsurvey.com/common-response-headers"><b>Common Response Headers</b></a> - the largest database of HTTP response headers.<br>
  534. &nbsp;&nbsp; <a href="https://labs.inquest.net"><b>InQuest Labs</b></a> - InQuest Labs is an open, interactive, and API driven data portal for security researchers.<br>
  535. </p>
  536. ##### :black_small_square: Generators
  537. <p>
  538. &nbsp;&nbsp; <a href="https://thispersondoesnotexist.com/"><b>thispersondoesnotexist</b></a> - generate fake faces in one click - endless possibilities.<br>
  539. &nbsp;&nbsp; <a href="https://generated.photos"><b>AI Generated Photos</b></a> - 100.000 AI generated faces.<br>
  540. &nbsp;&nbsp; <a href="https://www.fakenamegenerator.com/"><b>fakenamegenerator</b></a> - your randomly generated identity.<br>
  541. &nbsp;&nbsp; <a href="https://tools.intigriti.io/redirector/"><b>Intigriti Redirector</b></a> - open redirect/SSRF payload generator.<br>
  542. </p>
  543. ##### :black_small_square: Passwords
  544. <p>
  545. &nbsp;&nbsp; <a href="https://haveibeenpwned.com/"><b>have i been pwned?</b></a> - check if you have an account that has been compromised in a data breach.<br>
  546. &nbsp;&nbsp; <a href="https://www.dehashed.com/"><b>dehashed</b></a> - is a hacked database search engine.<br>
  547. &nbsp;&nbsp; <a href="https://leakedsource.ru/"><b>Leaked Source</b></a> - is a collaboration of data found online in the form of a lookup.<br>
  548. </p>
  549. ##### :black_small_square: CVE/Exploits databases
  550. <p>
  551. &nbsp;&nbsp; <a href="https://cve.mitre.org/"><b>CVE Mitre</b></a> - list of publicly known cybersecurity vulnerabilities.<br>
  552. &nbsp;&nbsp; <a href="https://www.cvedetails.com/"><b>CVE Details</b></a> - CVE security vulnerability advanced database.<br>
  553. &nbsp;&nbsp; <a href="https://www.exploit-db.com/"><b>Exploit DB</b></a> - CVE compliant archive of public exploits and corresponding vulnerable software.<br>
  554. &nbsp;&nbsp; <a href="https://0day.today/"><b>0day.today</b></a> - exploits market provides you the possibility to buy/sell zero-day exploits.<br>
  555. &nbsp;&nbsp; <a href="https://sploitus.com/"><b>sploitus</b></a> - the exploit and tools database.<br>
  556. &nbsp;&nbsp; <a href="https://cxsecurity.com/exploit/"><b>cxsecurity</b></a> - free vulnerability database.<br>
  557. &nbsp;&nbsp; <a href="https://www.vulncode-db.com/"><b>Vulncode-DB</b></a> - is a database for vulnerabilities and their corresponding source code if available.<br>
  558. &nbsp;&nbsp; <a href="https://cveapi.com/"><b>cveapi</b></a> - free API for CVE data.<br>
  559. </p>
  560. ##### :black_small_square: Mobile apps scanners
  561. <p>
  562. &nbsp;&nbsp; <a href="https://www.immuniweb.com/mobile/"><b>ImmuniWeb® Mobile App Scanner</b></a> - test security and privacy of mobile apps (iOS & Android).<br>
  563. &nbsp;&nbsp; <a href="https://vulnerabilitytest.quixxi.com/"><b>Quixxi</b></a> - free Mobile App Vulnerability Scanner for Android & iOS.<br>
  564. &nbsp;&nbsp; <a href="https://www.ostorlab.co/scan/mobile/"><b>Ostorlab</b></a> - analyzes mobile application to identify vulnerabilities and potential weaknesses.<br>
  565. </p>
  566. ##### :black_small_square: Private Search Engines
  567. <p>
  568. &nbsp;&nbsp; <a href="https://www.startpage.com/"><b>Startpage</b></a> - the world's most private search engine.<br>
  569. &nbsp;&nbsp; <a href="https://searx.me/"><b>searX</b></a> - a privacy-respecting, hackable metasearch engine.<br>
  570. &nbsp;&nbsp; <a href="https://darksearch.io/"><b>darksearch</b></a> - the 1st real Dark Web search engine.<br>
  571. &nbsp;&nbsp; <a href="https://www.qwant.com/"><b>Qwant</b></a> - the search engine that respects your privacy.<br>
  572. &nbsp;&nbsp; <a href="https://duckduckgo.com/"><b>DuckDuckGo</b></a> - the search engine that doesn't track you.<br>
  573. &nbsp;&nbsp; <a href="https://swisscows.com/"><b>Swisscows</b></a> - privacy safe web search<br>
  574. &nbsp;&nbsp; <a href="https://search.disconnect.me/"><b>Disconnect</b></a> - the search engine that anonymizes your searches.<br>
  575. &nbsp;&nbsp; <a href="https://metager.org/"><b>MetaGer</b></a> - the search engine that uses anonymous proxy and hidden Tor branches.<br>
  576. </p>
  577. ##### :black_small_square: Secure Webmail Providers
  578. <p>
  579. &nbsp;&nbsp; <a href="https://countermail.com/"><b>CounterMail</b></a> - online email service, designed to provide maximum security and privacy.<br>
  580. &nbsp;&nbsp; <a href="http://mail2tor.com/"><b>Mail2Tor</b></a> - is a Tor Hidden Service that allows anyone to send and receive emails anonymously.<br>
  581. &nbsp;&nbsp; <a href="https://tutanota.com/"><b>Tutanota</b></a> - is the world's most secure email service and amazingly easy to use.<br>
  582. &nbsp;&nbsp; <a href="https://protonmail.com/"><b>Protonmail</b></a> - is the world's largest secure email service, developed by CERN and MIT scientists.<br>
  583. &nbsp;&nbsp; <a href="https://www.startmail.com/en/"><b>Startmail</b></a> - private & encrypted email made easy.<br>
  584. </p>
  585. ##### :black_small_square: Crypto
  586. <p>
  587. &nbsp;&nbsp; <a href="https://keybase.io/"><b>Keybase</b></a> - it's open source and powered by public-key cryptography.<br>
  588. </p>
  589. ##### :black_small_square: PGP Keyservers
  590. <p>
  591. &nbsp;&nbsp; <a href="https://keyserver.ubuntu.com/"><b>SKS OpenPGP Key server</b></a> - services for the SKS keyservers used by OpenPGP.<br>
  592. </p>
  593. #### Systems/Services &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  594. ##### :black_small_square: Operating Systems
  595. <p>
  596. &nbsp;&nbsp; <a href="http://www.slackware.com/"><b>Slackware</b></a> - the most "Unix-like" Linux distribution.<br>
  597. &nbsp;&nbsp; <a href="https://www.openbsd.org/"><b>OpenBSD</b></a> - multi-platform 4.4BSD-based UNIX-like operating system.<br>
  598. &nbsp;&nbsp; <a href="https://hardenedbsd.org/"><b>HardenedBSD</b></a> - HardenedBSD aims to implement innovative exploit mitigation and security solutions.<br>
  599. &nbsp;&nbsp; <a href="https://www.kali.org/"><b>Kali Linux</b></a> - Linux distribution used for Penetration Testing, Ethical Hacking and network security assessments.<br>
  600. &nbsp;&nbsp; <a href="https://www.parrotsec.org/"><b>Parrot Security OS</b></a> - cyber security GNU/Linux environment.<br>
  601. &nbsp;&nbsp; <a href="https://www.backbox.org/"><b>Backbox Linux</b></a> - penetration test and security assessment oriented Ubuntu-based Linux distribution.<br>
  602. &nbsp;&nbsp; <a href="https://blackarch.org/"><b>BlackArch</b></a> - is an Arch Linux-based penetration testing distribution for penetration testers.<br>
  603. &nbsp;&nbsp; <a href="https://www.pentoo.ch/"><b>Pentoo</b></a> - is a security-focused livecd based on Gentoo.<br>
  604. &nbsp;&nbsp; <a href="https://securityonion.net/"><b>Security Onion</b></a> - Linux distro for intrusion detection, enterprise security monitoring, and log management.<br>
  605. &nbsp;&nbsp; <a href="https://tails.boum.org/"><b>Tails</b></a> - is a live system that aims to preserve your privacy and anonymity.<br>
  606. &nbsp;&nbsp; <a href="https://github.com/vedetta-com/vedetta"><b>vedetta</b></a> - OpenBSD router boilerplate.<br>
  607. &nbsp;&nbsp; <a href="https://www.qubes-os.org"><b>Qubes OS</b></a> - is a security-oriented OS that uses Xen-based virtualization.<br>
  608. </p>
  609. ##### :black_small_square: HTTP(s) Services
  610. <p>
  611. &nbsp;&nbsp; <a href="https://varnish-cache.org/"><b>Varnish Cache</b></a> - HTTP accelerator designed for content-heavy dynamic web sites.<br>
  612. &nbsp;&nbsp; <a href="https://nginx.org/"><b>Nginx</b></a> - open source web and reverse proxy server that is similar to Apache, but very light weight.<br>
  613. &nbsp;&nbsp; <a href="https://openresty.org/en/"><b>OpenResty</b></a> - is a dynamic web platform based on NGINX and LuaJIT.<br>
  614. &nbsp;&nbsp; <a href="https://github.com/alibaba/tengine"><b>Tengine</b></a> - a distribution of Nginx with some advanced features.<br>
  615. &nbsp;&nbsp; <a href="https://caddyserver.com/"><b>Caddy Server</b></a> - is an open source, HTTP/2-enabled web server with HTTPS by default.<br>
  616. &nbsp;&nbsp; <a href="https://www.haproxy.org/"><b>HAProxy</b></a> - the reliable, high performance TCP/HTTP load balancer.<br>
  617. </p>
  618. ##### :black_small_square: DNS Services
  619. <p>
  620. &nbsp;&nbsp; <a href="https://nlnetlabs.nl/projects/unbound/about/"><b>Unbound</b></a> - validating, recursive, and caching DNS resolver (with TLS).<br>
  621. &nbsp;&nbsp; <a href="https://www.knot-resolver.cz/"><b>Knot Resolver</b></a> - caching full resolver implementation, including both a resolver library and a daemon.<br>
  622. &nbsp;&nbsp; <a href="https://www.powerdns.com/"><b>PowerDNS</b></a> - is an open source authoritative DNS server, written in C++ and licensed under the GPL.<br>
  623. </p>
  624. ##### :black_small_square: Other Services
  625. <p>
  626. &nbsp;&nbsp; <a href="https://github.com/z3APA3A/3proxy"><b>3proxy</b></a> - tiny free proxy server.<br>
  627. </p>
  628. ##### :black_small_square: Security/hardening
  629. <p>
  630. &nbsp;&nbsp; <a href="https://twitter.com/EmeraldOnion"><b>Emerald Onion</b></a> - is a 501(c)(3) nonprofit organization and transit internet service provider (ISP).<br>
  631. &nbsp;&nbsp; <a href="https://github.com/pi-hole/pi-hole"><b>pi-hole</b></a> - the Pi-hole® is a DNS sinkhole that protects your devices from unwanted content.<br>
  632. &nbsp;&nbsp; <a href="https://github.com/stamparm/maltrail"><b>maltrail</b></a> - malicious traffic detection system.<br>
  633. &nbsp;&nbsp; <a href="https://github.com/Netflix/security_monkey"><b>security_monkey</b></a> - monitors AWS, GCP, OpenStack, and GitHub orgs for assets and their changes over time.<br>
  634. &nbsp;&nbsp; <a href="https://github.com/firecracker-microvm/firecracker"><b>firecracker</b></a> - secure and fast microVMs for serverless computing.<br>
  635. &nbsp;&nbsp; <a href="https://github.com/StreisandEffect/streisand"><b>streisand</b></a> - sets up a new server running your choice of WireGuard, OpenSSH, OpenVPN, and more.<br>
  636. </p>
  637. #### Networks &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  638. ##### :black_small_square: Tools
  639. <p>
  640. &nbsp;&nbsp; <a href="https://www.capanalysis.net/ca/"><b>CapAnalysis</b></a> - web visual tool to analyze large amounts of captured network traffic (PCAP analyzer).<br>
  641. &nbsp;&nbsp; <a href="https://github.com/digitalocean/netbox"><b>netbox</b></a> - IP address management (IPAM) and data center infrastructure management (DCIM) tool.<br>
  642. </p>
  643. ##### :black_small_square: Labs
  644. <p>
  645. &nbsp;&nbsp; <a href="https://labs.networkreliability.engineering/"><b>NRE Labs</b></a> - learn automation by doing it. Right now, right here, in your browser.<br>
  646. </p>
  647. ##### :black_small_square: Other
  648. <p>
  649. &nbsp;&nbsp; <a href="https://ee.lbl.gov/"><b>LBNL's Network Research Group</b></a> - home page of the Network Research Group (NRG).<br>
  650. </p>
  651. #### Containers/Orchestration &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  652. ##### :black_small_square: CLI Tools
  653. <p>
  654. &nbsp;&nbsp; <a href="https://github.com/google/gvisor"><b>gvisor</b></a> - container runtime sandbox.<br>
  655. &nbsp;&nbsp; <a href="https://github.com/bcicen/ctop"><b>ctop</b></a> - top-like interface for container metrics.<br>
  656. </p>
  657. ##### :black_small_square: Web Tools
  658. <p>
  659. &nbsp;&nbsp; <a href="https://github.com/moby/moby"><b>Moby</b></a> - a collaborative project for the container ecosystem to assemble container-based system.<br>
  660. &nbsp;&nbsp; <a href="https://traefik.io/"><b>Traefik</b></a> - open source reverse proxy/load balancer provides easier integration with Docker and Let's encrypt.<br>
  661. &nbsp;&nbsp; <a href="https://github.com/Kong/kong"><b>kong</b></a> - The Cloud-Native API Gateway.<br>
  662. &nbsp;&nbsp; <a href="https://github.com/rancher/rancher"><b>rancher</b></a> - complete container management platform.<br>
  663. &nbsp;&nbsp; <a href="https://github.com/portainer/portainer"><b>portainer</b></a> - making Docker management easy.<br>
  664. &nbsp;&nbsp; <a href="https://github.com/jwilder/nginx-proxy"><b>nginx-proxy</b></a> - automated nginx proxy for Docker containers using docker-gen.<br>
  665. &nbsp;&nbsp; <a href="https://github.com/bunkerity/bunkerized-nginx"><b>bunkerized-nginx</b></a> - nginx docker image "secure by default".<br>
  666. </p>
  667. ##### :black_small_square: Security
  668. <p>
  669. &nbsp;&nbsp; <a href="https://github.com/docker/docker-bench-security"><b>docker-bench-security</b></a> - checks for dozens of common best-practices around deploying Docker.<br>
  670. &nbsp;&nbsp; <a href="https://github.com/aquasecurity/trivy"><b>trivy</b></a> - vulnerability scanner for containers, suitable for CI.<br>
  671. &nbsp;&nbsp; <a href="https://goharbor.io/"><b>Harbor</b></a> - cloud native registry project that stores, signs, and scans content.<br>
  672. &nbsp;&nbsp; <a href="https://houdini.secsi.io/"><b>Houdini</b></a> - hundreds of offensive and useful docker images for network intrusion.<br>
  673. </p>
  674. ##### :black_small_square: Manuals/Tutorials/Best Practices
  675. <p>
  676. &nbsp;&nbsp; <a href="https://github.com/wsargent/docker-cheat-sheet"><b>docker-cheat-sheet</b></a> - a quick reference cheat sheet on Docker.<br>
  677. &nbsp;&nbsp; <a href="https://github.com/veggiemonk/awesome-docker"><b>awesome-docker</b></a> - a curated list of Docker resources and projects.<br>
  678. &nbsp;&nbsp; <a href="https://github.com/yeasy/docker_practice"><b>docker_practice</b></a> - learn and understand Docker technologies, with real DevOps practice!<br>
  679. &nbsp;&nbsp; <a href="https://github.com/docker/labs"><b>labs
  680. </b></a> - is a collection of tutorials for learning how to use Docker with various tools.<br>
  681. &nbsp;&nbsp; <a href="https://github.com/jessfraz/dockerfiles"><b>dockerfiles</b></a> - various Dockerfiles I use on the desktop and on servers.<br>
  682. &nbsp;&nbsp; <a href="https://github.com/kelseyhightower/kubernetes-the-hard-way"><b>kubernetes-the-hard-way</b></a> - bootstrap Kubernetes the hard way on Google Cloud Platform. No scripts.<br>
  683. &nbsp;&nbsp; <a href="https://github.com/jamesward/kubernetes-the-easy-way"><b>kubernetes-the-easy-way</b></a> - bootstrap Kubernetes the easy way on Google Cloud Platform. No scripts.<br>
  684. &nbsp;&nbsp; <a href="https://github.com/dennyzhang/cheatsheet-kubernetes-A4"><b>cheatsheet-kubernetes-A4</b></a> - Kubernetes CheatSheets in A4.<br>
  685. &nbsp;&nbsp; <a href="https://github.com/kabachook/k8s-security"><b>k8s-security</b></a> - kubernetes security notes and best practices.<br>
  686. &nbsp;&nbsp; <a href="https://learnk8s.io/production-best-practices/"><b>kubernetes-production-best-practices</b></a> - checklists with best-practices for production-ready Kubernetes.<br>
  687. &nbsp;&nbsp; <a href="https://github.com/freach/kubernetes-security-best-practice"><b>kubernetes-production-best-practices</b></a> - kubernetes security - best practice guide.<br>
  688. &nbsp;&nbsp; <a href="https://github.com/hjacobs/kubernetes-failure-stories"><b>kubernetes-failure-stories</b></a> - is a compilation of public failure/horror stories related to Kubernetes.<br>
  689. </p>
  690. #### Manuals/Howtos/Tutorials &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  691. ##### :black_small_square: Shell/Command line
  692. <p>
  693. &nbsp;&nbsp; <a href="https://github.com/dylanaraps/pure-bash-bible"><b>pure-bash-bible</b></a> - is a collection of pure bash alternatives to external processes.<br>
  694. &nbsp;&nbsp; <a href="https://github.com/dylanaraps/pure-sh-bible"><b>pure-sh-bible</b></a> - is a collection of pure POSIX sh alternatives to external processes.<br>
  695. &nbsp;&nbsp; <a href="https://github.com/Idnan/bash-guide"><b>bash-guide</b></a> - is a guide to learn bash.<br>
  696. &nbsp;&nbsp; <a href="https://github.com/denysdovhan/bash-handbook"><b>bash-handbook</b></a> - for those who wanna learn Bash.<br>
  697. &nbsp;&nbsp; <a href="https://wiki.bash-hackers.org/start"><b>The Bash Hackers Wiki</b></a> - hold documentation of any kind about GNU Bash.<br>
  698. &nbsp;&nbsp; <a href="http://pubs.opengroup.org/onlinepubs/9699919799/utilities/contents.html"><b>Shell & Utilities</b></a> - describes the commands offered to application programs by POSIX-conformant systems.<br>
  699. &nbsp;&nbsp; <a href="https://github.com/jlevy/the-art-of-command-line"><b>the-art-of-command-line</b></a> - master the command line, in one page.<br>
  700. &nbsp;&nbsp; <a href="https://google.github.io/styleguide/shellguide.html"><b>Shell Style Guide</b></a> - a shell style guide for Google-originated open-source projects.<br>
  701. </p>
  702. ##### :black_small_square: Text Editors
  703. <p>
  704. &nbsp;&nbsp; <a href="https://vim.rtorr.com/"><b>Vim Cheat Sheet</b></a> - great multi language vim guide.<br>
  705. </p>
  706. ##### :black_small_square: Python
  707. <p>
  708. &nbsp;&nbsp; <a href="https://awesome-python.com/"><b>Awesome Python</b></a> - a curated list of awesome Python frameworks, libraries, software and resources.<br>
  709. &nbsp;&nbsp; <a href="https://github.com/gto76/python-cheatsheet"><b>python-cheatsheet</b></a> - comprehensive Python cheatsheet.<br>
  710. &nbsp;&nbsp; <a href="https://www.pythoncheatsheet.org/"><b>pythoncheatsheet.org</b></a> - basic reference for beginner and advanced developers.<br>
  711. </p>
  712. ##### :black_small_square: Sed & Awk & Other
  713. <p>
  714. &nbsp;&nbsp; <a href="https://posts.specterops.io/fawk-yeah-advanced-sed-and-awk-usage-parsing-for-pentesters-3-e5727e11a8ad?gi=c8f9506b26b6"><b>F’Awk Yeah!</b></a> - advanced sed and awk usage (Parsing for Pentesters 3).<br>
  715. </p>
  716. ##### :black_small_square: \*nix & Network
  717. <p>
  718. &nbsp;&nbsp; <a href="https://www.cyberciti.biz/"><b>nixCraft</b></a> - linux and unix tutorials for new and seasoned sysadmin.<br>
  719. &nbsp;&nbsp; <a href="https://www.tecmint.com/"><b>TecMint</b></a> - the ideal Linux blog for Sysadmins & Geeks.<br>
  720. &nbsp;&nbsp; <a href="http://www.omnisecu.com/index.php"><b>Omnisecu</b></a> - free Networking, System Administration and Security tutorials.<br>
  721. &nbsp;&nbsp; <a href="https://github.com/cirosantilli/linux-cheat"><b>linux-cheat</b></a> - Linux tutorials and cheatsheets. Minimal examples. Mostly user-land CLI utilities.<br>
  722. &nbsp;&nbsp; <a href="https://github.com/snori74/linuxupskillchallenge"><b>linuxupskillchallenge</b></a> - learn the skills required to sysadmin.<br>
  723. &nbsp;&nbsp; <a href="http://cb.vu/unixtoolbox.xhtml"><b>Unix Toolbox</b></a> - Unix/Linux/BSD commands and tasks which are useful for IT work or for advanced users.<br>
  724. &nbsp;&nbsp; <a href="https://linux-kernel-labs.github.io/refs/heads/master/index.html"><b>Linux Kernel Teaching</b></a> - is a collection of lectures and labs Linux kernel topics.<br>
  725. &nbsp;&nbsp; <a href="https://peteris.rocks/blog/htop/"><b>htop explained</b></a> - explanation of everything you can see in htop/top on Linux.<br>
  726. &nbsp;&nbsp; <a href="https://linuxguideandhints.com/"><b>Linux Guide and Hints</b></a> - tutorials on system administration in Fedora and CentOS.<br>
  727. &nbsp;&nbsp; <a href="https://github.com/NanXiao/strace-little-book"><b>strace-little-book</b></a> - a little book which introduces strace.<br>
  728. &nbsp;&nbsp; <a href="https://github.com/goldshtn/linux-tracing-workshop"><b>linux-tracing-workshop</b></a> - examples and hands-on labs for Linux tracing tools workshops.<br>
  729. &nbsp;&nbsp; <a href="https://github.com/bagder/http2-explained"><b>http2-explained</b></a> - a detailed document explaining and documenting HTTP/2.<br>
  730. &nbsp;&nbsp; <a href="https://github.com/bagder/http3-explained"><b>http3-explained</b></a> - a document describing the HTTP/3 and QUIC protocols.<br>
  731. &nbsp;&nbsp; <a href="https://www.manning.com/books/http2-in-action"><b>HTTP/2 in Action</b></a> - an excellent introduction to the new HTTP/2 standard.<br>
  732. &nbsp;&nbsp; <a href="https://www.saminiir.com/lets-code-tcp-ip-stack-1-ethernet-arp/"><b>Let's code a TCP/IP stack</b></a> - great stuff to learn network and system programming at a deeper level.<br>
  733. &nbsp;&nbsp; <a href="https://github.com/trimstray/nginx-admins-handbook"><b>Nginx Admin's Handbook</b></a> - how to improve NGINX performance, security and other important things.<br>
  734. &nbsp;&nbsp; <a href="https://github.com/digitalocean/nginxconfig.io"><b>nginxconfig.io</b></a> - NGINX config generator on steroids.<br>
  735. &nbsp;&nbsp; <a href="https://infosec.mozilla.org/guidelines/openssh"><b>openssh guideline</b></a> - is to help operational teams with the configuration of OpenSSH server and client.<br>
  736. &nbsp;&nbsp; <a href="https://gravitational.com/blog/ssh-handshake-explained/"><b>SSH Handshake Explained</b></a> - is a relatively brief description of the SSH handshake.<br>
  737. &nbsp;&nbsp; <a href="https://kb.isc.org/docs/using-this-knowledgebase"><b>ISC's Knowledgebase</b></a> - you'll find some general information about BIND 9, ISC DHCP, and Kea DHCP.<br>
  738. &nbsp;&nbsp; <a href="https://packetlife.net/"><b>PacketLife.net</b></a> - a place to record notes while studying for Cisco's CCNP certification.<br>
  739. </p>
  740. ##### :black_small_square: Microsoft
  741. <p>
  742. &nbsp;&nbsp; <a href="https://github.com/infosecn1nja/AD-Attack-Defense"><b>AD-Attack-Defense</b></a> - attack and defend active directory using modern post exploitation activity.<br>
  743. </p>
  744. ##### :black_small_square: Large-scale systems
  745. <p>
  746. &nbsp;&nbsp; <a href="https://github.com/donnemartin/system-design-primer"><b>The System Design Primer</b></a> - learn how to design large-scale systems.<br>
  747. &nbsp;&nbsp; <a href="https://github.com/binhnguyennus/awesome-scalability"><b>Awesome Scalability</b></a> - best practices in building High Scalability, High Availability, High Stability, and more.<br>
  748. &nbsp;&nbsp; <a href="https://engineering.videoblocks.com/web-architecture-101-a3224e126947?gi=a896808d22a"><b>Web Architecture 101</b></a> - the basic architecture concepts.<br>
  749. </p>
  750. ##### :black_small_square: System hardening
  751. <p>
  752. &nbsp;&nbsp; <a href="https://www.cisecurity.org/cis-benchmarks/"><b>CIS Benchmarks</b></a> - secure configuration settings for over 100 technologies, available as a free PDF.<br>
  753. &nbsp;&nbsp; <a href="https://highon.coffee/blog/security-harden-centos-7/"><b>Security Harden CentOS 7</b></a> - this walks you through the steps required to security harden CentOS.<br>
  754. &nbsp;&nbsp; <a href="https://www.lisenet.com/2017/centos-7-server-hardening-guide/"><b>CentOS 7 Server Hardening Guide</b></a> - great guide for hardening CentOS; familiar with OpenSCAP.<br>
  755. &nbsp;&nbsp; <a href="https://github.com/decalage2/awesome-security-hardening"><b>awesome-security-hardening</b></a> - is a collection of security hardening guides, tools and other resources.<br>
  756. &nbsp;&nbsp; <a href="https://github.com/trimstray/the-practical-linux-hardening-guide"><b>The Practical Linux Hardening Guide</b></a> - provides a high-level overview of hardening GNU/Linux systems.<br>
  757. &nbsp;&nbsp; <a href="https://madaidans-insecurities.github.io/guides/linux-hardening.html"><b>Linux Hardening Guide</b></a> - how to harden Linux as much as possible for security and privacy.<br>
  758. </p>
  759. ##### :black_small_square: Security & Privacy
  760. <p>
  761. &nbsp;&nbsp; <a href="https://www.hackingarticles.in/"><b>Hacking Articles</b></a> - LRaj Chandel's Security & Hacking Blog.<br>
  762. &nbsp;&nbsp; <a href="https://github.com/toniblyx/my-arsenal-of-aws-security-tools"><b>AWS security tools</b></a> - make your AWS cloud environment more secure.<br>
  763. &nbsp;&nbsp; <a href="https://inventory.rawsec.ml/index.html"><b>Rawsec's CyberSecurity Inventory</b></a> - an inventory of tools and resources about CyberSecurity.<br>
  764. &nbsp;&nbsp; <a href="https://tls.ulfheim.net/"><b>The Illustrated TLS Connection</b></a> - every byte of a TLS connection explained and reproduced.<br>
  765. &nbsp;&nbsp; <a href="https://github.com/ssllabs/research/wiki/SSL-and-TLS-Deployment-Best-Practices"><b>SSL Research</b></a> - SSL and TLS Deployment Best Practices by SSL Labs.<br>
  766. &nbsp;&nbsp; <a href="http://selinuxgame.org/index.html"><b>SELinux Game</b></a> - learn SELinux by doing. Solve Puzzles, show skillz.<br>
  767. &nbsp;&nbsp; <a href="https://smallstep.com/blog/everything-pki.html"><b>Certificates and PKI</b></a> - everything you should know about certificates and PKI but are too afraid to ask.<br>
  768. &nbsp;&nbsp; <a href="https://appsecco.com/books/subdomain-enumeration/"><b>The Art of Subdomain Enumeration</b></a> - a reference for subdomain enumeration techniques.<br>
  769. &nbsp;&nbsp; <a href="https://lifehacker.com/the-comprehensive-guide-to-quitting-google-1830001964"><b>Quitting Google</b></a> - the comprehensive guide to quitting Google.<br>
  770. </p>
  771. ##### :black_small_square: Web Apps
  772. <p>
  773. &nbsp;&nbsp; <a href="https://www.owasp.org/index.php/Main_Page"><b>OWASP</b></a> - worldwide not-for-profit charitable organization focused on improving the security of software.<br>
  774. &nbsp;&nbsp; <a href="https://www.owasp.org/index.php/Category:OWASP_Application_Security_Verification_Standard_Project"><b>OWASP ASVS 3.0.1</b></a> - OWASP Application Security Verification Standard Project.<br>
  775. &nbsp;&nbsp; <a href="https://github.com/Santandersecurityresearch/asvs"><b>OWASP ASVS 3.0.1 Web App</b></a> - simple web app that helps developers understand the ASVS requirements.<br>
  776. &nbsp;&nbsp; <a href="https://github.com/OWASP/ASVS/tree/master/4.0"><b>OWASP ASVS 4.0</b></a> - is a list of application security requirements or tests.<br>
  777. &nbsp;&nbsp; <a href="https://www.owasp.org/index.php/OWASP_Testing_Project"><b>OWASP Testing Guide v4</b></a> - includes a "best practice" penetration testing framework.<br>
  778. &nbsp;&nbsp; <a href="https://github.com/OWASP/DevGuide"><b>OWASP Dev Guide</b></a> - this is the development version of the OWASP Developer Guide.<br>
  779. &nbsp;&nbsp; <a href="https://github.com/OWASP/wstg"><b>OWASP WSTG</b></a> - is a comprehensive open source guide to testing the security of web apps.<br>
  780. &nbsp;&nbsp; <a href="https://www.owasp.org/index.php/OWASP_API_Security_Project"><b>OWASP API Security Project</b></a> - focuses specifically on the top ten vulnerabilities in API security.<br>
  781. &nbsp;&nbsp; <a href="https://infosec.mozilla.org/guidelines/web_security.html"><b>Mozilla Web Security</b></a> - help operational teams with creating secure web applications.<br>
  782. &nbsp;&nbsp; <a href="https://github.com/Netflix/security-bulletins"><b>security-bulletins</b></a> - security bulletins that relate to Netflix Open Source.<br>
  783. &nbsp;&nbsp; <a href="https://github.com/shieldfy/API-Security-Checklist"><b>API-Security-Checklist</b></a> - security countermeasures when designing, testing, and releasing your API.<br>
  784. &nbsp;&nbsp; <a href="https://enable-cors.org/index.html"><b>Enable CORS</b></a> - enable cross-origin resource sharing.<br>
  785. &nbsp;&nbsp; <a href="https://appsecwiki.com/#/"><b>Application Security Wiki</b></a> - is an initiative to provide all application security related resources at one place.<br>
  786. &nbsp;&nbsp; <a href="https://github.com/GrrrDog/weird_proxies/wiki"><b>Weird Proxies</b></a> - reverse proxy related attacks; it is a result of analysis of various proxies.<br>
  787. &nbsp;&nbsp; <a href="https://dfir.it/blog/2015/08/12/webshell-every-time-the-same-purpose/"><b>Webshells</b></a> - great series about malicious payloads.<br>
  788. &nbsp;&nbsp; <a href="https://portswigger.net/blog/practical-web-cache-poisoning"><b>Practical Web Cache Poisoning</b></a> - show you how to compromise websites by using esoteric web features.<br>
  789. &nbsp;&nbsp; <a href="https://github.com/bl4de/research/tree/master/hidden_directories_leaks"><b>Hidden directories and files</b></a> - as a source of sensitive information about web application.<br>
  790. &nbsp;&nbsp; <a href="https://bo0om.ru/en/"><b>Explosive blog</b></a> - great blog about cybersec and pentests.<br>
  791. &nbsp;&nbsp; <a href="https://www.netsparker.com/security-cookies-whitepaper/"><b>Security Cookies</b></a> - this paper will take a close look at cookie security.<br>
  792. &nbsp;&nbsp; <a href="https://github.com/GitGuardian/APISecurityBestPractices"><b>APISecurityBestPractices</b></a> - help you keep secrets (API keys, db credentials, certificates) out of source code.<br>
  793. </p>
  794. ##### :black_small_square: All-in-one
  795. <p>
  796. &nbsp;&nbsp; <a href="https://lzone.de/cheat-sheet/"><b>LZone Cheat Sheets</b></a> - all cheat sheets.<br>
  797. &nbsp;&nbsp; <a href="https://github.com/rstacruz/cheatsheets"><b>Dan’s Cheat Sheets’s</b></a> - massive cheat sheets documentation.<br>
  798. &nbsp;&nbsp; <a href="https://devhints.io/"><b>Rico's cheatsheets</b></a> - this is a modest collection of cheatsheets.<br>
  799. &nbsp;&nbsp; <a href="https://devdocs.io/"><b>DevDocs API</b></a> - combines multiple API documentations in a fast, organized, and searchable interface.<br>
  800. &nbsp;&nbsp; <a href="https://cheat.sh/"><b>cheat.sh</b></a> - the only cheat sheet you need.<br>
  801. &nbsp;&nbsp; <a href="https://gnulinux.guru/"><b>gnulinux.guru</b></a> - collection of cheat sheets about bash, vim and networking.<br>
  802. &nbsp;&nbsp; <a href="https://andreasbm.github.io/web-skills/"><b>Web Skills</b></a> - visual overview of useful skills to learn as a web developer.<br>
  803. </p>
  804. ##### :black_small_square: Ebooks
  805. <p>
  806. &nbsp;&nbsp; <a href="https://github.com/EbookFoundation/free-programming-books"><b>free-programming-books</b></a> - list of free learning resources in many languages.<br>
  807. </p>
  808. ##### :black_small_square: Other
  809. <p>
  810. &nbsp;&nbsp; <a href="https://bitvijays.github.io/LFC-VulnerableMachines.html"><b>CTF Series : Vulnerable Machines</b></a> - the steps below could be followed to find vulnerabilities and exploits.<br>
  811. &nbsp;&nbsp; <a href="https://github.com/manoelt/50M_CTF_Writeup"><b>50M_CTF_Writeup</b></a> - $50 million CTF from Hackerone - writeup.<br>
  812. &nbsp;&nbsp; <a href="https://github.com/j00ru/ctf-tasks"><b>ctf-tasks</b></a> - an archive of low-level CTF challenges developed over the years.<br>
  813. &nbsp;&nbsp; <a href="https://hshrzd.wordpress.com/how-to-start/"><b>How to start RE/malware analysis?</b></a> - collection of some hints and useful links for the beginners.<br>
  814. &nbsp;&nbsp; <a href="http://www.kegel.com/c10k.html"><b>The C10K problem</b></a> - it's time for web servers to handle ten thousand clients simultaneously, don't you think?<br>
  815. &nbsp;&nbsp; <a href="https://blog.benjojo.co.uk/post/why-is-ethernet-mtu-1500"><b>How 1500 bytes became the MTU of the internet</b></a> - great story about the Maximum Transmission Unit.<br>
  816. &nbsp;&nbsp; <a href="http://poormansprofiler.org/"><b>poor man's profiler</b></a> - like dtrace's don't really provide methods to see what programs are blocking on.<br>
  817. &nbsp;&nbsp; <a href="https://nickcraver.com/blog/2017/05/22/https-on-stack-overflow/"><b>HTTPS on Stack Overflow</b></a> - this is the story of a long journey regarding the implementation of SSL.<br>
  818. &nbsp;&nbsp; <a href="https://drawings.jvns.ca/"><b>Julia's Drawings</b></a> - some drawings about programming and unix world, zines about systems & debugging tools.<br>
  819. &nbsp;&nbsp; <a href="https://github.com/corkami/collisions"><b>Hash collisions</b></a> - this great repository is focused on hash collisions exploitation.<br>
  820. &nbsp;&nbsp; <a href="https://github.com/in3rsha/sha256-animation"><b>sha256-animation</b></a> - animation of the SHA-256 hash function in your terminal.<br>
  821. &nbsp;&nbsp; <a href="https://sha256algorithm.com/"><b>sha256algorithm</b></a> - sha256 algorithm explained online step by step visually.<br>
  822. &nbsp;&nbsp; <a href="https://labs.ripe.net/Members/cteusche/bgp-meets-cat"><b>BGP Meets Cat</b></a> - after 3072 hours of manipulating BGP, Job Snijders has succeeded in drawing a Nyancat.<br>
  823. &nbsp;&nbsp; <a href="https://github.com/benjojo/bgp-battleships"><b>bgp-battleships</b></a> - playing battleships over BGP.<br>
  824. &nbsp;&nbsp; <a href="https://github.com/alex/what-happens-when"><b>What happens when...</b></a> - you type google.com into your browser and press enter?<br>
  825. &nbsp;&nbsp; <a href="https://github.com/vasanthk/how-web-works"><b>how-web-works</b></a> - based on the 'What happens when...' repository.<br>
  826. &nbsp;&nbsp; <a href="https://robertheaton.com/2018/11/28/https-in-the-real-world/"><b>HTTPS in the real world</b></a> - great tutorial explain how HTTPS works in the real world.<br>
  827. &nbsp;&nbsp; <a href="https://about.gitlab.com/2018/11/14/how-we-spent-two-weeks-hunting-an-nfs-bug/"><b>Gitlab and NFS bug</b></a> - how we spent two weeks hunting an NFS bug in the Linux kernel.<br>
  828. &nbsp;&nbsp; <a href="https://about.gitlab.com/2017/02/10/postmortem-of-database-outage-of-january-31/"><b>Gitlab melts down</b></a> - postmortem on the database outage of January 31 2017 with the lessons we learned.<br>
  829. &nbsp;&nbsp; <a href="http://www.catb.org/esr/faqs/hacker-howto.html"><b>How To Become A Hacker</b></a> - if you want to be a hacker, keep reading.<br>
  830. &nbsp;&nbsp; <a href="http://ithare.com/infographics-operation-costs-in-cpu-clock-cycles/"><b>Operation Costs in CPU</b></a> - should help to estimate costs of certain operations in CPU clocks.<br>
  831. &nbsp;&nbsp; <a href="https://cstack.github.io/db_tutorial/"><b>Let's Build a Simple Database</b></a> - writing a sqlite clone from scratch in C.<br>
  832. &nbsp;&nbsp; <a href="https://djhworld.github.io/post/2019/05/21/i-dont-know-how-cpus-work-so-i-simulated-one-in-code/"><b>simple-computer</b></a> - great resource to understand how computers work under the hood.<br>
  833. &nbsp;&nbsp; <a href="https://www.troyhunt.com/working-with-154-million-records-on/"><b>The story of "Have I been pwned?"</b></a> - working with 154 million records on Azure Table Storage.<br>
  834. &nbsp;&nbsp; <a href="https://www.top500.org/"><b>TOP500 Supercomputers</b></a> - shows the 500 most powerful commercially available computer systems.<br>
  835. &nbsp;&nbsp; <a href="https://www.shellntel.com/blog/2017/2/8/how-to-build-a-8-gpu-password-cracker"><b>How to build a 8 GPU password cracker</b></a> - hours of frustration like desktop components do.<br>
  836. &nbsp;&nbsp; <a href="https://home.cern/science/computing"><b>CERN Data Centre</b></a> - 3D visualizations of the CERN computing environments (and more).<br>
  837. &nbsp;&nbsp; <a href="http://howfuckedismydatabase.com/"><b>How fucked is my database</b></a> - evaluate how fucked your database is with this handy website.<br>
  838. &nbsp;&nbsp; <a href="https://krisbuytaert.be/blog/linux-troubleshooting-101-2016-edition/index.html"><b>Linux Troubleshooting 101 , 2016 Edition</b></a> - everything is a DNS Problem...<br>
  839. &nbsp;&nbsp; <a href="https://open.buffer.com/5-whys-process/"><b>Five Whys</b></a> - you know what the problem is, but you cannot solve it?<br>
  840. &nbsp;&nbsp; <a href="https://gvnshtn.com/maersk-me-notpetya/"><b>Maersk, me & notPetya</b></a> - how did ransomware successfully hijack hundreds of domain controllers?<br>
  841. &nbsp;&nbsp; <a href="https://howhttps.works/"><b>howhttps.works</b></a> - how HTTPS works ...in a comic!<br>
  842. &nbsp;&nbsp; <a href="https://howdns.works/"><b>howdns.works</b></a> - a fun and colorful explanation of how DNS works.<br>
  843. &nbsp;&nbsp; <a href="https://postgresqlco.nf/en/doc/param/"><b>POSTGRESQLCO.NF</b></a> - your postgresql.conf documentation and recommendations.<br>
  844. </p>
  845. #### Inspiring Lists &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  846. ##### :black_small_square: SysOps/DevOps
  847. <p>
  848. &nbsp;&nbsp; <a href="https://github.com/kahun/awesome-sysadmin"><b>Awesome Sysadmin</b></a> - amazingly awesome open source sysadmin resources.<br>
  849. &nbsp;&nbsp; <a href="https://github.com/alebcay/awesome-shell"><b>Awesome Shell</b></a> - awesome command-line frameworks, toolkits, guides and gizmos.<br>
  850. &nbsp;&nbsp; <a href="https://github.com/learnbyexample/Command-line-text-processing"><b>Command-line-text-processing</b></a> - finding text to search and replace, sorting to beautifying, and more.<br>
  851. &nbsp;&nbsp; <a href="https://github.com/caesar0301/awesome-pcaptools"><b>Awesome Pcaptools</b></a> - collection of tools developed by other researchers to process network traces.<br>
  852. &nbsp;&nbsp; <a href="https://github.com/zoidbergwill/awesome-ebpf"><b>awesome-ebpf</b></a> - a curated list of awesome projects related to eBPF.<br>
  853. &nbsp;&nbsp; <a href="https://github.com/leandromoreira/linux-network-performance-parameters"><b>Linux Network Performance</b></a> - where some of the network sysctl variables fit into the Linux/Kernel network flow.<br>
  854. &nbsp;&nbsp; <a href="https://github.com/dhamaniasad/awesome-postgres"><b>Awesome Postgres</b></a> - list of awesome PostgreSQL software, libraries, tools and resources.<br>
  855. &nbsp;&nbsp; <a href="https://github.com/enochtangg/quick-SQL-cheatsheet"><b>quick-SQL-cheatsheet</b></a> - a quick reminder of all SQL queries and examples on how to use them.<br>
  856. &nbsp;&nbsp; <a href="https://github.com/Kickball/awesome-selfhosted"><b>Awesome-Selfhosted</b></a> - list of Free Software network services and web applications which can be hosted locally.<br>
  857. &nbsp;&nbsp; <a href="https://wiki.archlinux.org/index.php/List_of_applications"><b>List of applications</b></a> - huge list of apps sorted by category, as a reference for those looking for packages.<br>
  858. &nbsp;&nbsp; <a href="https://github.com/InterviewMap/CS-Interview-Knowledge-Map"><b>CS-Interview-Knowledge-Map</b></a> - build the best interview map.<br>
  859. &nbsp;&nbsp; <a href="https://github.com/Tikam02/DevOps-Guide"><b>DevOps-Guide</b></a> - DevOps Guide from basic to advanced with Interview Questions and Notes.<br>
  860. &nbsp;&nbsp; <a href="https://issue.freebsdfoundation.org/publication/?m=33057&l=1&view=issuelistBrowser"><b>FreeBSD Journal</b></a> - it is a great list of periodical magazines about FreeBSD and other important things.<br>
  861. &nbsp;&nbsp; <a href="https://github.com/bregman-arie/devops-interview-questions"><b>devops-interview-questions</b></a> - contains interview questions on various DevOps and SRE related topics.<br></p>
  862. ##### :black_small_square: Developers
  863. <p>
  864. &nbsp;&nbsp; <a href="https://github.com/kamranahmedse/developer-roadmap"><b>Web Developer Roadmap</b></a> - roadmaps, articles and resources to help you choose your path, learn and improve.<br>
  865. &nbsp;&nbsp; <a href="https://github.com/thedaviddias/Front-End-Checklist"><b>Front-End-Checklist</b></a> - the perfect Front-End Checklist for modern websites and meticulous developers.<br>
  866. &nbsp;&nbsp; <a href="https://github.com/thedaviddias/Front-End-Performance-Checklist"><b>Front-End-Performance-Checklist</b></a> - Front-End Performance Checklist that runs faster than the others.<br>
  867. &nbsp;&nbsp; <a href="https://rszalski.github.io/magicmethods/"><b>Python's Magic Methods</b></a> - what are magic methods? They're everything in object-oriented Python.<br>
  868. &nbsp;&nbsp; <a href="https://github.com/satwikkansal/wtfpython"><b>wtfpython</b></a> - a collection of surprising Python snippets and lesser-known features.<br>
  869. &nbsp;&nbsp; <a href="https://github.com/twhite96/js-dev-reads"><b>js-dev-reads</b></a> - a list of books and articles for the discerning web developer to read.<br>
  870. &nbsp;&nbsp; <a href="https://github.com/RomuloOliveira/commit-messages-guide"><b>Commit messages guide</b></a> - a guide to understand the importance of commit messages.<br>
  871. </p>
  872. ##### :black_small_square: Security/Pentesting
  873. <p>
  874. &nbsp;&nbsp; <a href="https://github.com/qazbnm456/awesome-web-security"><b>Awesome Web Security</b></a> - a curated list of Web Security materials and resources.<br>
  875. &nbsp;&nbsp; <a href="https://github.com/joe-shenouda/awesome-cyber-skills"><b>awesome-cyber-skills</b></a> - a curated list of hacking environments where you can train your cyber skills.<br>
  876. &nbsp;&nbsp; <a href="https://github.com/devsecops/awesome-devsecops"><b>awesome-devsecops</b></a> - an authoritative list of awesome devsecops tools.<br>
  877. &nbsp;&nbsp; <a href="https://github.com/jivoi/awesome-osint"><b>awesome-osint</b></a> - is a curated list of amazingly awesome OSINT.<br>
  878. &nbsp;&nbsp; <a href="https://github.com/HolyBugx/HolyTips"><b>HolyTips</b></a> - tips and tutorials on Bug Bounty Hunting and Web App Security.<br>
  879. &nbsp;&nbsp; <a href="https://github.com/hslatman/awesome-threat-intelligence"><b>awesome-threat-intelligence</b></a> - a curated list of Awesome Threat Intelligence resources.<br>
  880. &nbsp;&nbsp; <a href="https://github.com/infosecn1nja/Red-Teaming-Toolkit"><b>Red-Teaming-Toolkit</b></a> - a collection of open source and commercial tools that aid in red team operations.<br>
  881. &nbsp;&nbsp; <a href="https://github.com/snoopysecurity/awesome-burp-extensions"><b>awesome-burp-extensions</b></a> - a curated list of amazingly awesome Burp Extensions.<br>
  882. &nbsp;&nbsp; <a href="https://github.com/Hack-with-Github/Free-Security-eBooks"><b>Free Security eBooks</b></a> - list of a Free Security and Hacking eBooks.<br>
  883. &nbsp;&nbsp; <a href="https://github.com/yeahhub/Hacking-Security-Ebooks"><b>Hacking-Security-Ebooks</b></a> - top 100 Hacking & Security E-Books.<br>
  884. &nbsp;&nbsp; <a href="https://github.com/nikitavoloboev/privacy-respecting"><b>privacy-respecting</b></a> - curated list of privacy respecting services and software.<br>
  885. &nbsp;&nbsp; <a href="https://github.com/wtsxDev/reverse-engineering"><b>reverse-engineering</b></a> - list of awesome reverse engineering resources.<br>
  886. &nbsp;&nbsp; <a href="https://github.com/michalmalik/linux-re-101"><b>linux-re-101</b></a> - a collection of resources for linux reverse engineering.<br>
  887. &nbsp;&nbsp; <a href="https://github.com/onethawt/reverseengineering-reading-list"><b>reverseengineering-reading-list</b></a> - a list of Reverse Engineering articles, books, and papers.<br>
  888. &nbsp;&nbsp; <a href="https://github.com/0xInfection/Awesome-WAF"><b>Awesome-WAF</b></a> - a curated list of awesome web-app firewall (WAF) stuff.<br>
  889. &nbsp;&nbsp; <a href="https://github.com/jakejarvis/awesome-shodan-queries"><b>awesome-shodan-queries</b></a> - interesting, funny, and depressing search queries to plug into shodan.io.<br>
  890. &nbsp;&nbsp; <a href="https://github.com/danielmiessler/RobotsDisallowed"><b>RobotsDisallowed</b></a> - a curated list of the most common and most interesting robots.txt disallowed directories.<br>
  891. &nbsp;&nbsp; <a href="https://github.com/Kayzaks/HackingNeuralNetworks"><b>HackingNeuralNetworks</b></a> - is a small course on exploiting and defending neural networks.<br>
  892. &nbsp;&nbsp; <a href="https://gist.github.com/joepie91/7e5cad8c0726fd6a5e90360a754fc568"><b>wildcard-certificates</b></a> - why you probably shouldn't use a wildcard certificate.<br>
  893. &nbsp;&nbsp; <a href="https://gist.github.com/joepie91/5a9909939e6ce7d09e29"><b>Don't use VPN services</b></a> - which is what every third-party "VPN provider" does.<br>
  894. &nbsp;&nbsp; <a href="https://github.com/InQuest/awesome-yara"><b>awesome-yara</b></a> - a curated list of awesome YARA rules, tools, and people.<br>
  895. &nbsp;&nbsp; <a href="https://github.com/drduh/macOS-Security-and-Privacy-Guide"><b>macOS-Security-and-Privacy-Guide</b></a> - guide to securing and improving privacy on macOS.<br>
  896. &nbsp;&nbsp; <a href="https://github.com/usnistgov/macos_security"><b>macos_security</b></a> - macOS Security Compliance Project.<br>
  897. &nbsp;&nbsp; <a href="https://github.com/PaulSec/awesome-sec-talks"><b>awesome-sec-talks</b></a> - is a collected list of awesome security talks.<br>
  898. &nbsp;&nbsp; <a href="https://github.com/k4m4/movies-for-hackers"><b>Movies for Hackers</b></a> - list of movies every hacker & cyberpunk must watch.<br>
  899. &nbsp;&nbsp; <a href="https://github.com/danieldizzy/Cryptography_1"><b>Cryptography_1</b></a> - materials used whilst taking Prof. Dan Boneh Stanford Crypto course.<br>
  900. &nbsp;&nbsp; <a href="https://github.com/ashutosh1206/Crypton"><b>Crypton</b></a> - library to learn and practice Offensive and Defensive Cryptography.<br>
  901. </p>
  902. ##### :black_small_square: Other
  903. <p>
  904. &nbsp;&nbsp; <a href="https://www.cheatography.com/"><b>Cheatography</b></a> - over 3,000 free cheat sheets, revision aids and quick references.<br>
  905. &nbsp;&nbsp; <a href="https://github.com/mre/awesome-static-analysis"><b>awesome-static-analysis</b></a> - static analysis tools for all programming languages.<br>
  906. &nbsp;&nbsp; <a href="https://github.com/ossu/computer-science"><b>computer-science</b></a> - path to a free self-taught education in Computer Science.<br>
  907. &nbsp;&nbsp; <a href="https://github.com/danluu/post-mortems"><b>post-mortems</b></a> - is a collection of postmortems (config errors, hardware failures, and more).<br>
  908. &nbsp;&nbsp; <a href="https://github.com/danistefanovic/build-your-own-x"><b>build-your-own-x</b></a> - build your own (insert technology here).<br>
  909. &nbsp;&nbsp; <a href="https://github.com/rby90/Project-Based-Tutorials-in-C"><b>Project-Based-Tutorials-in-C</b></a> - is a curated list of project-based tutorials in C.<br>
  910. &nbsp;&nbsp; <a href="https://github.com/kylelobo/The-Documentation-Compendium"><b>The-Documentation-Compendium</b></a> - various README templates & tips on writing high-quality documentation.<br>
  911. &nbsp;&nbsp; <a href="https://github.com/mahmoud/awesome-python-applications"><b>awesome-python-applications</b></a> - free software that works great, and also happens to be open-source Python.<br>
  912. &nbsp;&nbsp; <a href="https://github.com/awesomedata/awesome-public-datasets"><b>awesome-public-datasets</b></a> - a topic-centric list of HQ open datasets.<br>
  913. &nbsp;&nbsp; <a href="https://github.com/Sahith02/machine-learning-algorithms"><b>machine-learning-algorithms</b></a> - a curated list of all machine learning algorithms and concepts.<br>
  914. </p>
  915. #### Blogs/Podcasts/Videos &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  916. ##### :black_small_square: SysOps/DevOps
  917. <p>
  918. &nbsp;&nbsp; <a href="https://www.youtube.com/watch?v=nAFpkV5-vuI"><b>Varnish for PHP developers</b></a> - very interesting presentation of Varnish by Mattias Geniar.<br>
  919. &nbsp;&nbsp; <a href="https://www.youtube.com/watch?v=CZ3wIuvmHeM"><b>A Netflix Guide to Microservices</b></a> - talks about the chaotic and vibrant world of microservices at Netflix.<br>
  920. </p>
  921. ##### :black_small_square: Developers
  922. <p>
  923. &nbsp;&nbsp; <a href="https://www.youtube.com/watch?v=yOyaJXpAYZQ"><b>Comparing C to machine lang</b></a> - compare a simple C app with the compiled machine code of that program.<br>
  924. </p>
  925. ##### :black_small_square: Geeky Persons
  926. <p>
  927. &nbsp;&nbsp; <a href="http://www.brendangregg.com/"><b>Brendan Gregg's Blog</b></a> - is an industry expert in computing performance and cloud computing.<br>
  928. &nbsp;&nbsp; <a href="https://gynvael.coldwind.pl/"><b>Gynvael "GynDream" Coldwind</b></a> - is a IT security engineer at Google.<br>
  929. &nbsp;&nbsp; <a href="http://lcamtuf.coredump.cx/"><b>Michał "lcamtuf" Zalewski</b></a> - white hat hacker, computer security expert.<br>
  930. &nbsp;&nbsp; <a href="https://ma.ttias.be/"><b>Mattias Geniar</b></a> - developer, sysadmin, blogger, podcaster and public speaker.<br>
  931. &nbsp;&nbsp; <a href="https://nickcraver.com/"><b>Nick Craver</b></a> - software developer and systems administrator for Stack Exchange.<br>
  932. &nbsp;&nbsp; <a href="https://scotthelme.co.uk/"><b>Scott Helme</b></a> - security researcher, speaker and founder of securityheaders.com and report-uri.com.<br>
  933. &nbsp;&nbsp; <a href="https://krebsonsecurity.com/"><b>Brian Krebs</b></a> - The Washington Post and now an Independent investigative journalist.<br>
  934. &nbsp;&nbsp; <a href="https://www.schneier.com/"><b>Bruce Schneier</b></a> - is an internationally renowned security technologist, called a "security guru".<br>
  935. &nbsp;&nbsp; <a href="https://chrissymorgan.co.uk/"><b>Chrissy Morgan</b></a> - advocate of practical learning, Chrissy also takes part in bug bounty programs.<br>
  936. &nbsp;&nbsp; <a href="https://blog.zsec.uk/"><b>Andy Gill</b></a> - is a hacker at heart who works as a senior penetration tester.<br>
  937. &nbsp;&nbsp; <a href="https://danielmiessler.com/"><b>Daniel Miessler</b></a> - cybersecurity expert and writer.<br>
  938. &nbsp;&nbsp; <a href="https://samy.pl/"><b>Samy Kamkar</b></a> - is an American privacy and security researcher, computer hacker.<br>
  939. &nbsp;&nbsp; <a href="https://www.j4vv4d.com/"><b>Javvad Malik</b></a> - is a security advocate at AlienVault, a blogger event speaker and industry commentator.<br>
  940. &nbsp;&nbsp; <a href="https://www.grahamcluley.com/"><b>Graham Cluley</b></a> - public speaker and independent computer security analyst.<br>
  941. &nbsp;&nbsp; <a href="https://security.szurek.pl/"><b>Kacper Szurek</b></a> - detection engineer at ESET.<br>
  942. &nbsp;&nbsp; <a href="https://www.troyhunt.com/"><b>Troy Hunt</b></a> - web security expert known for public education and outreach on security topics.<br>
  943. &nbsp;&nbsp; <a href="https://raymii.org/s/index.html"><b>raymii.org</b></a> - sysadmin specializing in building high availability cloud environments.<br>
  944. &nbsp;&nbsp; <a href="https://robert.penz.name/"><b>Robert Penz</b></a> - IT security expert.<br>
  945. </p>
  946. ##### :black_small_square: Geeky Blogs
  947. <p>
  948. &nbsp;&nbsp; <a href="https://linux-audit.com/"><b>Linux Audit</b></a> - the Linux security blog about auditing, hardening and compliance by Michael Boelen.<br>
  949. &nbsp;&nbsp; <a href="https://linuxsecurity.expert/"><b>
  950. Linux Security Expert</b></a> - trainings, howtos, checklists, security tools, and more.<br>
  951. &nbsp;&nbsp; <a href="http://www.grymoire.com/"><b>The Grymoire</b></a> - collection of useful incantations for wizards, be you computer wizards, magicians, or whatever.<br>
  952. &nbsp;&nbsp; <a href="https://www.secjuice.com"><b>Secjuice</b></a> - is the only non-profit, independent and volunteer led publication in the information security space.<br>
  953. &nbsp;&nbsp; <a href="https://duo.com/decipher"><b>Decipher</b></a> - security news that informs and inspires.<br>
  954. </p>
  955. ##### :black_small_square: Geeky Vendor Blogs
  956. <p>
  957. &nbsp;&nbsp; <a href="https://www.tenable.com/podcast"><b>Tenable Podcast</b></a> - conversations and interviews related to Cyber Exposure, and more.<br>
  958. &nbsp;&nbsp; <a href="https://nakedsecurity.sophos.com/"><b>Sophos</b></a> - threat news room, giving you news, opinion, advice and research on computer security issues.<br>
  959. &nbsp;&nbsp; <a href="https://www.tripwire.com/state-of-security/"><b>Tripwire State of Security</b></a> - blog featuring the latest news, trends and insights on current security issues.<br>
  960. &nbsp;&nbsp; <a href="https://blog.malwarebytes.com/"><b>Malwarebytes Labs Blog</b></a> - security blog aims to provide insider news about cybersecurity.<br>
  961. &nbsp;&nbsp; <a href="https://www.trustedsec.com/category/articles/"><b>TrustedSec</b></a> - latest news, and trends about cybersecurity.<br>
  962. &nbsp;&nbsp; <a href="https://portswigger.net/blog"><b>PortSwigger Web Security Blog</b></a> - about web app security vulns and top tips from our team of web security.<br>
  963. &nbsp;&nbsp; <a href="https://www.alienvault.com/blogs"><b>AT&T Cybersecurity blog</b></a> - news on emerging threats and practical advice to simplify threat detection.<br>
  964. &nbsp;&nbsp; <a href="https://thycotic.com/company/blog/"><b>Thycotic</b></a> - where CISOs and IT Admins come to learn about industry trends, IT security, and more.<br>
  965. </p>
  966. ##### :black_small_square: Geeky Cybersecurity Podcasts
  967. <p>
  968. &nbsp;&nbsp; <a href="https://risky.biz/netcasts/risky-business/"><b>Risky Business</b></a> - is a weekly information security podcast featuring news and in-depth interviews.<br>
  969. &nbsp;&nbsp; <a href="https://www.vice.com/en_us/topic/cyber"><b>Cyber, by Motherboard</b></a> - stories, and focus on the ideas about cybersecurity.<br>
  970. &nbsp;&nbsp; <a href="https://www.tenable.com/podcast"><b>Tenable Podcast</b></a> - conversations and interviews related to Cyber Exposure, and more.<br>
  971. &nbsp;&nbsp; <a href="https://podcasts.apple.com/gb/podcast/cybercrime-investigations/id1428801405"><b>
  972. Cybercrime Investigations</b></a> - podcast by Geoff White about cybercrimes.<br>
  973. &nbsp;&nbsp; <a href="https://themanyhats.club/tag/episodes/"><b>The many hats club</b></a> - featuring stories from a wide range of Infosec people (Whitehat, Greyhat and Blackhat).<br>
  974. &nbsp;&nbsp; <a href="https://darknetdiaries.com/"><b>Darknet Diaries</b></a> - true stories from the dark side of the Internet.<br>
  975. &nbsp;&nbsp; <a href="https://www.youtube.com/playlist?list=PL423I_gHbWUXah3dmt_q_XNp0NlGAKjis"><b>OSINTCurious Webcasts</b></a> - is the investigative curiosity that helps people be successful in OSINT.<br>
  976. &nbsp;&nbsp; <a href="https://www.youtube.com/user/SecurityWeeklyTV"><b>Security Weekly</b></a> - the latest information security and hacking news.<br>
  977. </p>
  978. ##### :black_small_square: Geeky Cybersecurity Video Blogs
  979. <p>
  980. &nbsp;&nbsp; <a href="https://www.youtube.com/channel/UCzvJStjySZVvOBsPl-Vgj0g"><b>rev3rse security</b></a> - offensive, binary exploitation, web app security, hardening, red team, blue team.<br>
  981. &nbsp;&nbsp; <a href="https://www.youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w"><b>LiveOverflow</b></a> - a lot more advanced topics than what is typically offered in paid online courses - but for free.<br>
  982. &nbsp;&nbsp; <a href="https://www.youtube.com/infoseccynic"><b>J4vv4D</b></a> - the important information regarding our internet security.<br>
  983. &nbsp;&nbsp; <a href="https://cybertalks.co.uk/"><b>
  984. CyberTalks</b></a> - talks, interviews, and article about cybersecurity.<br>
  985. </p>
  986. ##### :black_small_square: Best Personal Twitter Accounts
  987. <p>
  988. &nbsp;&nbsp; <a href="https://twitter.com/blackroomsec"><b>@blackroomsec</b></a> - a white-hat hacker/pentester. Intergalactic Minesweeper Champion 1990.<br>
  989. &nbsp;&nbsp; <a href="https://twitter.com/MarcoCiappelli"><b>@MarcoCiappelli</b></a> - Co-Founder @ITSPmagazine, at the intersection of IT security and society.<br>
  990. &nbsp;&nbsp; <a href="https://twitter.com/binitamshah"><b>@binitamshah</b></a> - Linux Evangelist. Malwares. Kernel Dev. Security Enthusiast.<br>
  991. &nbsp;&nbsp; <a href="https://twitter.com/joe_carson"><b>@joe_carson</b></a> - an InfoSec Professional and Tech Geek.<br>
  992. &nbsp;&nbsp; <a href="https://twitter.com/mikko"><b>@mikko</b></a> - CRO at F-Secure, Reverse Engineer, TED Speaker, Supervillain.<br>
  993. &nbsp;&nbsp; <a href="https://twitter.com/esrtweet"><b>@esrtweet</b></a> - often referred to as ESR, is an American software developer, and open-source software advocate.<br>
  994. &nbsp;&nbsp; <a href="https://twitter.com/gynvael"><b>@gynvael</b></a> - security researcher/programmer, @DragonSectorCTF founder/player, technical streamer.<br>
  995. &nbsp;&nbsp; <a href="https://twitter.com/x0rz"><b>@x0rz</b></a> - Security Researcher & Cyber Observer.<br>
  996. &nbsp;&nbsp; <a href="https://twitter.com/hasherezade"><b>@hasherezade</b></a> - programmer, malware analyst. Author of PEbear, PEsieve, libPeConv.<br>
  997. &nbsp;&nbsp; <a href="https://twitter.com/TinkerSec"><b>@TinkerSec</b></a> - tinkerer, cypherpunk, hacker.<br>
  998. &nbsp;&nbsp; <a href="https://twitter.com/alisaesage"><b>@alisaesage</b></a> - independent hacker and researcher.<br>
  999. &nbsp;&nbsp; <a href="https://twitter.com/SwiftOnSecurity"><b>@SwiftOnSecurity</b></a> - systems security, industrial safety, sysadmin, author of decentsecurity.com.<br>
  1000. &nbsp;&nbsp; <a href="https://twitter.com/dakami"><b>@dakami</b></a> - is one of just seven people with the authority to restore the DNS root keys.<br>
  1001. &nbsp;&nbsp; <a href="https://twitter.com/samykamkar"><b>@samykamkar</b></a> - is a famous "grey hat" hacker, security researcher, creator of the MySpace "Samy" worm.<br>
  1002. &nbsp;&nbsp; <a href="https://twitter.com/securityweekly"><b>@securityweekly</b></a> - founder & CTO of Security Weekly podcast network.<br>
  1003. &nbsp;&nbsp; <a href="https://twitter.com/jack_daniel"><b>@jack_daniel</b></a> - @SecurityBSides co-founder.<br>
  1004. &nbsp;&nbsp; <a href="https://twitter.com/thegrugq"><b>@thegrugq</b></a> - Security Researcher.<br>
  1005. &nbsp;&nbsp; <a href="https://twitter.com/matthew_d_green"><b>@matthew_d_green</b></a> - a cryptographer and professor at Johns Hopkins University.<br>
  1006. </p>
  1007. ##### :black_small_square: Best Commercial Twitter Accounts
  1008. <p>
  1009. &nbsp;&nbsp; <a href="https://twitter.com/haveibeenpwned"><b>@haveibeenpwned</b></a> - check if you have an account that has been compromised in a data breach.<br>
  1010. &nbsp;&nbsp; <a href="https://twitter.com/bugcrowd"><b>@bugcrowd</b></a> - trusted by more of the Fortune 500 than any other crowdsourced security platform.<br>
  1011. &nbsp;&nbsp; <a href="https://twitter.com/Malwarebytes"><b>@Malwarebytes</b></a> - most trusted security company. Unmatched threat visibility.<br>
  1012. &nbsp;&nbsp; <a href="https://twitter.com/sansforensics"><b>@sansforensics</b></a> - the world's leading Digital Forensics and Incident Response provider.<br>
  1013. &nbsp;&nbsp; <a href="https://twitter.com/attcyber"><b>@attcyber</b></a> - AT&T Cybersecurity’s Edge-to-Edge technologies provide threat intelligence, and more.<br>
  1014. &nbsp;&nbsp; <a href="https://twitter.com/TheManyHatsClub"><b>@TheManyHatsClub</b></a> - an information security focused podcast and group of individuals from all walks of life.<br>
  1015. &nbsp;&nbsp; <a href="https://twitter.com/hedgehogsec"><b>@hedgehogsec</b></a> - Hedgehog Cyber. Gibraltar and Manchester's top boutique information security firm.<br>
  1016. &nbsp;&nbsp; <a href="https://twitter.com/NCSC"><b>@NCSC</b></a> - the National Cyber Security Centre. Helping to make the UK the safest place to live and work online.<br>
  1017. &nbsp;&nbsp; <a href="https://twitter.com/Synacktiv"><b>@Synacktiv</b></a> - IT security experts.<br>
  1018. </p>
  1019. ##### :black_small_square: A piece of history
  1020. <p>
  1021. &nbsp;&nbsp; <a href="http://web.archive.org/web/20190221103734/https://ftp.arl.army.mil/~mike/howto/"><b>How to Do Things at ARL</b></a> - how to configure modems, scan images, record CD-ROMs, and other.<b>*</b><br>
  1022. </p>
  1023. ##### :black_small_square: Other
  1024. <p>
  1025. &nbsp;&nbsp; <a href="https://www.youtube.com/watch?v=3QnD2c4Xovk"><b>Diffie-Hellman Key Exchange (short version)</b></a> - how Diffie-Hellman Key Exchange worked.<br>
  1026. </p>
  1027. #### Hacking/Penetration Testing &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  1028. ##### :black_small_square: Pentesters arsenal tools
  1029. <p>
  1030. &nbsp;&nbsp; <a href="http://www.syhunt.com/sandcat/"><b>Sandcat Browser</b></a> - a penetration-oriented browser with plenty of advanced functionality already built in.<br>
  1031. &nbsp;&nbsp; <a href="https://www.metasploit.com/"><b>Metasploit</b></a> - tool and framework for pentesting system, web and many more.<br>
  1032. &nbsp;&nbsp; <a href="https://portswigger.net/burp"><b>Burp Suite</b></a> - tool for testing web app security, intercepting proxy to replay, inject, scan and fuzz.<br>
  1033. &nbsp;&nbsp; <a href="https://www.owasp.org/index.php/OWASP_Zed_Attack_Proxy_Project"><b>OWASP Zed Attack Proxy</b></a> - intercepting proxy to replay, inject, scan and fuzz HTTP requests.<br>
  1034. &nbsp;&nbsp; <a href="http://w3af.org/"><b>w3af</b></a> - is a Web Application Attack and Audit Framework.<br>
  1035. &nbsp;&nbsp; <a href="https://mitmproxy.org/"><b>mitmproxy</b></a> - an interactive TLS-capable intercepting HTTP proxy for penetration testers.<br>
  1036. &nbsp;&nbsp; <a href="https://cirt.net/Nikto2"><b>Nikto2</b></a> - web server scanner which performs comprehensive tests against web servers for multiple items.<br>
  1037. &nbsp;&nbsp; <a href="http://sqlmap.org/"><b>sqlmap</b></a> - tool that automates the process of detecting and exploiting SQL injection flaws.<br>
  1038. &nbsp;&nbsp; <a href="https://github.com/lanmaster53/recon-ng"><b>Recon-ng</b></a> - is a full-featured Web Reconnaissance framework written in Python.<br>
  1039. &nbsp;&nbsp; <a href="https://github.com/Tib3rius/AutoRecon"><b>AutoRecon</b></a> - is a network reconnaissance tool which performs automated enumeration of services.<br>
  1040. &nbsp;&nbsp; <a href="https://www.faradaysec.com/"><b>Faraday</b></a> - an Integrated Multiuser Pentest Environment.<br>
  1041. &nbsp;&nbsp; <a href="https://github.com/s0md3v/Photon"><b>Photon</b></a> - incredibly fast crawler designed for OSINT.<br>
  1042. &nbsp;&nbsp; <a href="https://github.com/s0md3v/XSStrike"><b>XSStrike</b></a> - most advanced XSS detection suite.<br>
  1043. &nbsp;&nbsp; <a href="https://github.com/1N3/Sn1per"><b>Sn1per</b></a> - automated pentest framework for offensive security experts.<br>
  1044. &nbsp;&nbsp; <a href="https://github.com/future-architect/vuls"><b>vuls</b></a> - is an agent-less vulnerability scanner for Linux, FreeBSD, and other.<br>
  1045. &nbsp;&nbsp; <a href="https://github.com/google/tsunami-security-scanner"><b>tsunami</b></a> - is a general purpose network security scanner with an extensible plugin system.<br>
  1046. &nbsp;&nbsp; <a href="https://github.com/michenriksen/aquatone"><b>aquatone</b></a> - a tool for domain flyovers.<br>
  1047. &nbsp;&nbsp; <a href="https://github.com/GitHackTools/BillCipher"><b>BillCipher</b></a> - information gathering tool for a website or IP address.<br>
  1048. &nbsp;&nbsp; <a href="https://github.com/Ekultek/WhatWaf"><b>WhatWaf</b></a> - detect and bypass web application firewalls and protection systems.<br>
  1049. &nbsp;&nbsp; <a href="https://github.com/s0md3v/Corsy"><b>Corsy</b></a> - CORS misconfiguration scanner.<br>
  1050. &nbsp;&nbsp; <a href="https://github.com/evyatarmeged/Raccoon"><b>Raccoon</b></a> - is a high performance offensive security tool for reconnaissance and vulnerability scanning.<br>
  1051. &nbsp;&nbsp; <a href="https://github.com/Nekmo/dirhunt"><b>dirhunt</b></a> - find web directories without bruteforce.<br>
  1052. &nbsp;&nbsp; <a href="https://www.openwall.com/john/"><b>John The Ripper</b></a> - is a fast password cracker, currently available for many flavors of Unix, Windows, and other.<br>
  1053. &nbsp;&nbsp; <a href="https://hashcat.net/hashcat/"><b>hashcat</b></a> - world's fastest and most advanced password recovery utility.<br>
  1054. &nbsp;&nbsp; <a href="http://lcamtuf.coredump.cx/p0f3/"><b>p0f</b></a> - is a tool to identify the players behind any incidental TCP/IP communications.<br>
  1055. &nbsp;&nbsp; <a href="https://github.com/mozilla/ssh_scan"><b>ssh_scan</b></a> - a prototype SSH configuration and policy scanner.<br>
  1056. &nbsp;&nbsp; <a href="https://github.com/woj-ciech/LeakLooker"><b>LeakLooker</b></a> - find open databases - powered by Binaryedge.io<br>
  1057. &nbsp;&nbsp; <a href="https://github.com/offensive-security/exploitdb"><b>exploitdb</b></a> - searchable archive from The Exploit Database.<br>
  1058. &nbsp;&nbsp; <a href="https://github.com/vulnersCom/getsploit"><b>getsploit</b></a> - is a command line utility for searching and downloading exploits.<br>
  1059. &nbsp;&nbsp; <a href="https://github.com/zardus/ctf-tools"><b>ctf-tools</b></a> - some setup scripts for security research tools.<br>
  1060. &nbsp;&nbsp; <a href="https://github.com/Gallopsled/pwntools"><b>pwntools</b></a> - CTF framework and exploit development library.<br>
  1061. &nbsp;&nbsp; <a href="https://github.com/bl4de/security-tools"><b>security-tools</b></a> - collection of small security tools created mostly in Python. CTFs, pentests and so on.<br>
  1062. &nbsp;&nbsp; <a href="https://github.com/leonteale/pentestpackage"><b>pentestpackage</b></a> - is a package of Pentest scripts.<br>
  1063. &nbsp;&nbsp; <a href="https://github.com/dloss/python-pentest-tools"><b>python-pentest-tools</b></a> - python tools for penetration testers.<br>
  1064. &nbsp;&nbsp; <a href="https://github.com/fuzzdb-project/fuzzdb"><b>fuzzdb</b></a> - dictionary of attack patterns and primitives for black-box application fault injection.<br>
  1065. &nbsp;&nbsp; <a href="https://github.com/google/AFL"><b>AFL</b></a> - is a free software fuzzer maintained by Google.<br>
  1066. &nbsp;&nbsp; <a href="https://github.com/AFLplusplus/AFLplusplus"><b>AFL++</b></a> - is AFL with community patches.<br>
  1067. &nbsp;&nbsp; <a href="https://github.com/google/syzkaller"><b>syzkaller</b></a> - is an unsupervised, coverage-guided kernel fuzzer.<br>
  1068. &nbsp;&nbsp; <a href="https://github.com/pwndbg/pwndbg"><b>pwndbg</b></a> - exploit development and reverse engineering with GDB made easy.<br>
  1069. &nbsp;&nbsp; <a href="https://github.com/longld/peda"><b>GDB PEDA</b></a> - Python Exploit Development Assistance for GDB.<br>
  1070. &nbsp;&nbsp; <a href="https://www.hex-rays.com/products/ida/index.shtml"><b>IDA</b></a> - multi-processor disassembler and debugger useful for reverse engineering malware.<br>
  1071. &nbsp;&nbsp; <a href="https://github.com/radare/radare2"><b>radare2</b></a> - framework for reverse-engineering and analyzing binaries.<br>
  1072. &nbsp;&nbsp; <a href="https://github.com/threat9/routersploit"><b>routersploit</b></a> - exploitation framework for embedded devices.<br>
  1073. &nbsp;&nbsp; <a href="https://github.com/NationalSecurityAgency/ghidra"><b>Ghidra</b></a> - is a software reverse engineering (SRE) framework.<br>
  1074. &nbsp;&nbsp; <a href="https://cutter.re/"><b>Cutter</b></a> - is an SRE platform integrating Ghidra's decompiler.<br>
  1075. &nbsp;&nbsp; <a href="https://github.com/salesforce/vulnreport"><b>Vulnreport</b></a> - open-source pentesting management and automation platform by Salesforce Product Security.<br>
  1076. &nbsp;&nbsp; <a href="https://github.com/sc0tfree/mentalist"><b>Mentalist</b></a> - is a graphical tool for custom wordlist generation.<br>
  1077. &nbsp;&nbsp; <a href="https://github.com/archerysec/archerysec"><b>archerysec</b></a> - vulnerability assessment and management helps to perform scans and manage vulnerabilities.<br>
  1078. &nbsp;&nbsp; <a href="https://github.com/j3ssie/Osmedeus"><b>Osmedeus</b></a> - fully automated offensive security tool for reconnaissance and vulnerability scanning.<br>
  1079. &nbsp;&nbsp; <a href="https://github.com/beefproject/beef"><b>beef</b></a> - the browser exploitation framework project.<br>
  1080. &nbsp;&nbsp; <a href="https://github.com/NullArray/AutoSploit"><b>AutoSploit</b></a> - automated mass exploiter.<br>
  1081. &nbsp;&nbsp; <a href="https://github.com/TH3xACE/SUDO_KILLER"><b>SUDO_KILLER</b></a> - is a tool to identify and exploit sudo rules' misconfigurations and vulnerabilities.<br>
  1082. &nbsp;&nbsp; <a href="https://github.com/VirusTotal/yara"><b>yara</b></a> - the pattern matching swiss knife.<br>
  1083. &nbsp;&nbsp; <a href="https://github.com/gentilkiwi/mimikatz"><b>mimikatz</b></a> - a little tool to play with Windows security.<br>
  1084. &nbsp;&nbsp; <a href="https://github.com/sherlock-project/sherlock"><b>sherlock</b></a> - hunt down social media accounts by username across social networks.<br>
  1085. &nbsp;&nbsp; <a href="https://owasp.org/www-project-threat-dragon/"><b>OWASP Threat Dragon</b></a> - is a tool used to create threat model diagrams and to record possible threats.<br>
  1086. </p>
  1087. ##### :black_small_square: Pentests bookmarks collection
  1088. <p>
  1089. &nbsp;&nbsp; <a href="http://www.pentest-standard.org/index.php/Main_Page"><b>PTES</b></a> - the penetration testing execution standard.<br>
  1090. &nbsp;&nbsp; <a href="https://www.amanhardikar.com/mindmaps/Practice.html"><b>Pentests MindMap</b></a> - amazing mind map with vulnerable apps and systems.<br>
  1091. &nbsp;&nbsp; <a href="https://www.amanhardikar.com/mindmaps/webapptest.html"><b>WebApps Security Tests MindMap</b></a> - incredible mind map for WebApps security tests.<br>
  1092. &nbsp;&nbsp; <a href="https://brutelogic.com.br/blog/"><b>Brute XSS</b></a> - master the art of Cross Site Scripting.<br>
  1093. &nbsp;&nbsp; <a href="https://portswigger.net/web-security/cross-site-scripting/cheat-sheet"><b>XSS cheat sheet</b></a> - contains many vectors that can help you bypass WAFs and filters.<br>
  1094. &nbsp;&nbsp; <a href="https://jivoi.github.io/2015/07/03/offensive-security-bookmarks/"><b>Offensive Security Bookmarks</b></a> - security bookmarks collection, all things that author need to pass OSCP.<br>
  1095. &nbsp;&nbsp; <a href="https://github.com/coreb1t/awesome-pentest-cheat-sheets"><b>Awesome Pentest Cheat Sheets</b></a> - collection of the cheat sheets useful for pentesting.<br>
  1096. &nbsp;&nbsp; <a href="https://github.com/Hack-with-Github/Awesome-Hacking"><b>Awesome Hacking by HackWithGithub</b></a> - awesome lists for hackers, pentesters and security researchers.<br>
  1097. &nbsp;&nbsp; <a href="https://github.com/carpedm20/awesome-hacking"><b>Awesome Hacking by carpedm20</b></a> - a curated list of awesome hacking tutorials, tools and resources.<br>
  1098. &nbsp;&nbsp; <a href="https://github.com/vitalysim/Awesome-Hacking-Resources"><b>Awesome Hacking Resources</b></a> - collection of hacking/penetration testing resources to make you better.<br>
  1099. &nbsp;&nbsp; <a href="https://github.com/enaqx/awesome-pentest"><b>Awesome Pentest</b></a> - collection of awesome penetration testing resources, tools and other shiny things.<br>
  1100. &nbsp;&nbsp; <a href="https://github.com/m4ll0k/Awesome-Hacking-Tools"><b>Awesome-Hacking-Tools</b></a> - is a curated list of awesome Hacking Tools.<br>
  1101. &nbsp;&nbsp; <a href="https://github.com/ksanchezcld/Hacking_Cheat_Sheet"><b>Hacking Cheat Sheet</b></a> - author hacking and pentesting notes.<br>
  1102. &nbsp;&nbsp; <a href="https://github.com/toolswatch/blackhat-arsenal-tools"><b>blackhat-arsenal-tools</b></a> - official Black Hat arsenal security tools repository.<br>
  1103. &nbsp;&nbsp; <a href="https://www.peerlyst.com/posts/the-complete-list-of-infosec-related-cheat-sheets-claus-cramon"><b>Penetration Testing and WebApp Cheat Sheets</b></a> - the complete list of Infosec related cheat sheets.<br>
  1104. &nbsp;&nbsp; <a href="https://github.com/The-Art-of-Hacking/h4cker"><b>Cyber Security Resources</b></a> - includes thousands of cybersecurity-related references and resources.<br>
  1105. &nbsp;&nbsp; <a href="https://github.com/jhaddix/pentest-bookmarks"><b>Pentest Bookmarks</b></a> - there are a LOT of pentesting blogs.<br>
  1106. &nbsp;&nbsp; <a href="https://github.com/OlivierLaflamme/Cheatsheet-God"><b>Cheatsheet-God</b></a> - Penetration Testing Reference Bank - OSCP/PTP & PTX Cheatsheet.<br>
  1107. &nbsp;&nbsp; <a href="https://github.com/Cyb3rWard0g/ThreatHunter-Playbook"><b>ThreatHunter-Playbook</b></a> - to aid the development of techniques and hypothesis for hunting campaigns.<br>
  1108. &nbsp;&nbsp; <a href="https://github.com/hmaverickadams/Beginner-Network-Pentesting"><b>Beginner-Network-Pentesting</b></a> - notes for beginner network pentesting course.<br>
  1109. &nbsp;&nbsp; <a href="https://github.com/rewardone/OSCPRepo"><b>OSCPRepo</b></a> - is a list of resources that author have been gathering in preparation for the OSCP.<br>
  1110. &nbsp;&nbsp; <a href="https://github.com/swisskyrepo/PayloadsAllTheThings"><b>PayloadsAllTheThings</b></a> - a list of useful payloads and bypass for Web Application Security and Pentest/CTF.<br>
  1111. &nbsp;&nbsp; <a href="https://github.com/foospidy/payloads"><b>payloads</b></a> - git all the Payloads! A collection of web attack payloads.<br>
  1112. &nbsp;&nbsp; <a href="https://github.com/payloadbox/command-injection-payload-list"><b>command-injection-payload-list</b></a> - command injection payload list.<br>
  1113. &nbsp;&nbsp; <a href="https://github.com/jakejarvis/awesome-shodan-queries"><b>Awesome Shodan Search Queries</b></a> - great search queries to plug into Shodan.<br>
  1114. &nbsp;&nbsp; <a href="https://github.com/s0md3v/AwesomeXSS"><b>AwesomeXSS</b></a> - is a collection of Awesome XSS resources.<br>
  1115. &nbsp;&nbsp; <a href="https://github.com/JohnTroony/php-webshells"><b>php-webshells</b></a> - common php webshells.<br>
  1116. &nbsp;&nbsp; <a href="https://highon.coffee/blog/penetration-testing-tools-cheat-sheet/"><b>Pentesting Tools Cheat Sheet</b></a> - a quick reference high level overview for typical penetration testing.<br>
  1117. &nbsp;&nbsp; <a href="https://cheatsheetseries.owasp.org/"><b>OWASP Cheat Sheet Series</b></a> - is a collection of high value information on specific application security topics.<br>
  1118. &nbsp;&nbsp; <a href="https://jeremylong.github.io/DependencyCheck/index.html"><b>OWASP dependency-check</b></a> - is an open source solution the OWASP Top 10 2013 entry.<br>
  1119. &nbsp;&nbsp; <a href="https://www.owasp.org/index.php/OWASP_Proactive_Controls"><b>OWASP ProActive Controls</b></a> - OWASP Top 10 Proactive Controls 2018.<br>
  1120. &nbsp;&nbsp; <a href="https://github.com/blaCCkHatHacEEkr/PENTESTING-BIBLE"><b>PENTESTING-BIBLE</b></a> - hacking & penetration testing & red team & cyber security resources.<br>
  1121. &nbsp;&nbsp; <a href="https://github.com/nixawk/pentest-wiki"><b>pentest-wiki</b></a> - is a free online security knowledge library for pentesters/researchers.<br>
  1122. &nbsp;&nbsp; <a href="https://media.defcon.org/"><b>DEF CON Media Server</b></a> - great stuff from DEFCON.<br>
  1123. &nbsp;&nbsp; <a href="https://github.com/rshipp/awesome-malware-analysis"><b>Awesome Malware Analysis</b></a> - a curated list of awesome malware analysis tools and resources.<br>
  1124. &nbsp;&nbsp; <a href="https://www.netsparker.com/blog/web-security/sql-injection-cheat-sheet/"><b>SQL Injection Cheat Sheet</b></a> - detailed technical stuff about the many different variants of the SQL Injection.<br>
  1125. &nbsp;&nbsp; <a href="http://kb.entersoft.co.in/"><b>Entersoft Knowledge Base</b></a> - great and detailed reference about vulnerabilities.<br>
  1126. &nbsp;&nbsp; <a href="http://html5sec.org/"><b>HTML5 Security Cheatsheet</b></a> - a collection of HTML5 related XSS attack vectors.<br>
  1127. &nbsp;&nbsp; <a href="http://evuln.com/tools/xss-encoder/"><b>XSS String Encoder</b></a> - for generating XSS code to check your input validation filters against XSS.<br>
  1128. &nbsp;&nbsp; <a href="https://gtfobins.github.io/"><b>GTFOBins</b></a> - list of Unix binaries that can be exploited by an attacker to bypass local security restrictions.<br>
  1129. &nbsp;&nbsp; <a href="https://guif.re/"><b>Guifre Ruiz Notes</b></a> - collection of security, system, network and pentest cheatsheets.<br>
  1130. &nbsp;&nbsp; <a href="http://blog.safebuff.com/2016/07/03/SSRF-Tips/index.html"><b>SSRF Tips</b></a> - a collection of SSRF Tips.<br>
  1131. &nbsp;&nbsp; <a href="http://shell-storm.org/repo/CTF/"><b>shell-storm repo CTF</b></a> - great archive of CTFs.<br>
  1132. &nbsp;&nbsp; <a href="https://github.com/bl4de/ctf"><b>ctf</b></a> - CTF (Capture The Flag) writeups, code snippets, notes, scripts.<br>
  1133. &nbsp;&nbsp; <a href="https://github.com/orangetw/My-CTF-Web-Challenges"><b>My-CTF-Web-Challenges</b></a> - collection of CTF Web challenges.<br>
  1134. &nbsp;&nbsp; <a href="https://github.com/OWASP/owasp-mstg"><b>MSTG</b></a> - The Mobile Security Testing Guide (MSTG) is a comprehensive manual for mobile app security testing.<br>
  1135. &nbsp;&nbsp; <a href="https://github.com/sdcampbell/Internal-Pentest-Playbook"><b>Internal-Pentest-Playbook</b></a> - notes on the most common things for an Internal Network Penetration Test.<br>
  1136. &nbsp;&nbsp; <a href="https://github.com/streaak/keyhacks"><b>KeyHacks</b></a> - shows quick ways in which API keys leaked by a bug bounty program can be checked.<br>
  1137. &nbsp;&nbsp; <a href="https://github.com/securitum/research"><b>securitum/research</b></a> - various Proof of Concepts of security research performed by Securitum.<br>
  1138. &nbsp;&nbsp; <a href="https://github.com/juliocesarfort/public-pentesting-reports"><b>public-pentesting-reports</b></a> - is a list of public pentest reports released by several consulting security groups.<br>
  1139. &nbsp;&nbsp; <a href="https://github.com/djadmin/awesome-bug-bounty"><b>awesome-bug-bounty</b></a> - is a comprehensive curated list of available Bug Bounty.<br>
  1140. &nbsp;&nbsp; <a href="https://github.com/ngalongc/bug-bounty-reference"><b>bug-bounty-reference</b></a> - is a list of bug bounty write-ups.<br>
  1141. &nbsp;&nbsp; <a href="https://github.com/devanshbatham/Awesome-Bugbounty-Writeups"><b>Awesome-Bugbounty-Writeups</b></a> - is a curated list of bugbounty writeups.<br>
  1142. &nbsp;&nbsp; <a href="https://pentester.land/list-of-bug-bounty-writeups.html"><b>Bug bounty writeups</b></a> - list of bug bounty writeups (2012-2020).<br>
  1143. &nbsp;&nbsp; <a href="https://hackso.me/"><b>hackso.me</b></a> - a great journey into security.<br>
  1144. </p>
  1145. ##### :black_small_square: Backdoors/exploits
  1146. <p>
  1147. &nbsp;&nbsp; <a href="https://github.com/bartblaze/PHP-backdoors"><b>PHP-backdoors</b></a> - a collection of PHP backdoors. For educational or testing purposes only.<br>
  1148. </p>
  1149. ##### :black_small_square: Wordlists and Weak passwords
  1150. <p>
  1151. &nbsp;&nbsp; <a href="https://weakpass.com/"><b>Weakpass</b></a> - for any kind of bruteforce find wordlists or unleash the power of them all at once!<br>
  1152. &nbsp;&nbsp; <a href="https://hashes.org/"><b>Hashes.org</b></a> - is a free online hash resolving service incorporating many unparalleled techniques.<br>
  1153. &nbsp;&nbsp; <a href="https://github.com/danielmiessler/SecLists"><b>SecLists</b></a> - collection of multiple types of lists used during security assessments, collected in one place.<br>
  1154. &nbsp;&nbsp; <a href="https://github.com/berzerk0/Probable-Wordlists"><b>Probable-Wordlists</b></a> - sorted by probability originally created for password generation and testing.<br>
  1155. &nbsp;&nbsp; <a href="https://wiki.skullsecurity.org/index.php?title=Passwords"><b>skullsecurity passwords</b></a> - password dictionaries and leaked passwords repository.<br>
  1156. &nbsp;&nbsp; <a href="https://bezpieka.org/polski-slownik-premium-polish-wordlist"><b>Polish PREMIUM Dictionary</b></a> - official dictionary created by the team on the forum bezpieka.org.<b>*</b> <sup><a href="https://sourceforge.net/projects/kali-linux/files/Wordlist/">1</sup><br>
  1157. &nbsp;&nbsp; <a href="https://github.com/insidetrust/statistically-likely-usernames"><b>statistically-likely-usernames</b></a> - wordlists for creating statistically likely username lists.<br>
  1158. </p>
  1159. ##### :black_small_square: Bounty platforms
  1160. <p>
  1161. &nbsp;&nbsp; <a href="https://www.yeswehack.com/"><b>YesWeHack</b></a> - bug bounty platform with infosec jobs.<br>
  1162. &nbsp;&nbsp; <a href="https://www.openbugbounty.org/"><b>Openbugbounty</b></a> - allows any security researcher reporting a vulnerability on any website.<br>
  1163. &nbsp;&nbsp; <a href="https://www.hackerone.com/"><b>hackerone</b></a> - global hacker community to surface the most relevant security issues.<br>
  1164. &nbsp;&nbsp; <a href="https://www.bugcrowd.com/"><b>bugcrowd</b></a> - crowdsourced cybersecurity for the enterprise.<br>
  1165. &nbsp;&nbsp; <a href="https://crowdshield.com/"><b>Crowdshield</b></a> - crowdsourced security & bug bounty management.<br>
  1166. &nbsp;&nbsp; <a href="https://www.synack.com/"><b>Synack</b></a> - crowdsourced security & bug bounty programs, crowd security intelligence platform, and more.<br>
  1167. &nbsp;&nbsp; <a href="https://hacktrophy.com/en/"><b>Hacktrophy</b></a> - bug bounty platform.<br>
  1168. </p>
  1169. ##### :black_small_square: Web Training Apps (local installation)
  1170. <p>
  1171. &nbsp;&nbsp; <a href="https://www.owasp.org/index.php/OWASP_Vulnerable_Web_Applications_Directory_Project"><b>OWASP-VWAD</b></a> - comprehensive and well maintained registry of all known vulnerable web applications.<br>
  1172. &nbsp;&nbsp; <a href="http://www.dvwa.co.uk/"><b>DVWA</b></a> - PHP/MySQL web application that is damn vulnerable.<br>
  1173. &nbsp;&nbsp; <a href="https://metasploit.help.rapid7.com/docs/metasploitable-2"><b>metasploitable2</b></a> - vulnerable web application amongst security researchers.<br>
  1174. &nbsp;&nbsp; <a href="https://github.com/rapid7/metasploitable3"><b>metasploitable3</b></a> - is a VM that is built from the ground up with a large amount of security vulnerabilities.<br>
  1175. &nbsp;&nbsp; <a href="https://github.com/stamparm/DSVW"><b>DSVW</b></a> - is a deliberately vulnerable web application written in under 100 lines of code.<br>
  1176. &nbsp;&nbsp; <a href="https://sourceforge.net/projects/mutillidae/"><b>OWASP Mutillidae II</b></a> - free, open source, deliberately vulnerable web-application.<br>
  1177. &nbsp;&nbsp; <a href="https://www.owasp.org/index.php/OWASP_Juice_Shop_Project"><b>OWASP Juice Shop Project</b></a> - the most bug-free vulnerable application in existence.<br>
  1178. &nbsp;&nbsp; <a href="https://www.owasp.org/index.php/Projects/OWASP_Node_js_Goat_Project"><b>OWASP Node js Goat Project</b></a> - OWASP Top 10 security risks apply to web apps developed using Node.js.<br>
  1179. &nbsp;&nbsp; <a href="https://github.com/iteratec/juicy-ctf"><b>juicy-ctf</b></a> - run Capture the Flags and Security Trainings with OWASP Juice Shop.<br>
  1180. &nbsp;&nbsp; <a href="https://github.com/OWASP/SecurityShepherd"><b>SecurityShepherd</b></a> - web and mobile application security training platform.<br>
  1181. &nbsp;&nbsp; <a href="https://github.com/opendns/Security_Ninjas_AppSec_Training"><b>Security Ninjas</b></a> - open source application security training program.<br>
  1182. &nbsp;&nbsp; <a href="https://github.com/rapid7/hackazon"><b>hackazon</b></a> - a modern vulnerable web app.<br>
  1183. &nbsp;&nbsp; <a href="https://github.com/appsecco/dvna"><b>dvna</b></a> - damn vulnerable NodeJS application.<br>
  1184. &nbsp;&nbsp; <a href="https://github.com/DefectDojo/django-DefectDojo"><b>django-DefectDojo</b></a> - is an open-source application vulnerability correlation and security orchestration tool.<br>
  1185. &nbsp;&nbsp; <a href="https://google-gruyere.appspot.com/"><b>Google Gruyere</b></a> - web application exploits and defenses.<br>
  1186. &nbsp;&nbsp; <a href="https://github.com/amolnaik4/bodhi"><b>Bodhi</b></a> - is a playground focused on learning the exploitation of client-side web vulnerabilities.<br>
  1187. &nbsp;&nbsp; <a href="https://websploit.h4cker.org/"><b>Websploit</b></a> - single vm lab with the purpose of combining several vulnerable appliations in one environment.<br>
  1188. &nbsp;&nbsp; <a href="https://github.com/vulhub/vulhub"><b>vulhub</b></a> - pre-built Vulnerable Environments based on docker-compose.<br>
  1189. &nbsp;&nbsp; <a href="https://rhinosecuritylabs.com/aws/introducing-cloudgoat-2/"><b>CloudGoat 2</b></a> - the new & improved "Vulnerable by Design"
  1190. AWS deployment tool.<br>
  1191. &nbsp;&nbsp; <a href="https://github.com/globocom/secDevLabs"><b>secDevLabs</b></a> - is a laboratory for learning secure web development in a practical manner.<br>
  1192. &nbsp;&nbsp; <a href="https://github.com/incredibleindishell/CORS-vulnerable-Lab"><b>CORS-vulnerable-Lab</b></a> - sample vulnerable code and its exploit code.<br>
  1193. &nbsp;&nbsp; <a href="https://github.com/moloch--/RootTheBox"><b>RootTheBox</b></a> - a Game of Hackers (CTF Scoreboard & Game Manager).<br>
  1194. &nbsp;&nbsp; <a href="https://application.security/"><b>KONTRA</b></a> - application security training (OWASP Top Web & Api).<br>
  1195. </p>
  1196. ##### :black_small_square: Labs (ethical hacking platforms/trainings/CTFs)
  1197. <p>
  1198. &nbsp;&nbsp; <a href="https://www.offensive-security.com/"><b>Offensive Security</b></a> - true performance-based penetration testing training for over a decade.<br>
  1199. &nbsp;&nbsp; <a href="https://www.hackthebox.eu/"><b>Hack The Box</b></a> - online platform allowing you to test your penetration testing skills.<br>
  1200. &nbsp;&nbsp; <a href="https://www.hacking-lab.com/index.html"><b>Hacking-Lab</b></a> - online ethical hacking, computer network and security challenge platform.<br>
  1201. &nbsp;&nbsp; <a href="http://pwnable.kr/index.php"><b>pwnable.kr</b></a> - non-commercial wargame site which provides various pwn challenges.<br>
  1202. &nbsp;&nbsp; <a href="https://pwnable.tw/"><b>Pwnable.tw</b></a> - is a wargame site for hackers to test and expand their binary exploiting skills.<br>
  1203. &nbsp;&nbsp; <a href="https://picoctf.com/"><b>picoCTF</b></a> - is a free computer security game targeted at middle and high school students.<br>
  1204. &nbsp;&nbsp; <a href="https://ctflearn.com/"><b>CTFlearn</b></a> - is an online platform built to help ethical hackers learn and practice their cybersecurity knowledge.<br>
  1205. &nbsp;&nbsp; <a href="https://ctftime.org/"><b>ctftime</b></a> - CTF archive and a place, where you can get some another CTF-related info.<br>
  1206. &nbsp;&nbsp; <a href="https://silesiasecuritylab.com/"><b>Silesia Security Lab</b></a> - high quality security testing services.<br>
  1207. &nbsp;&nbsp; <a href="https://practicalpentestlabs.com/"><b>Practical Pentest Labs</b></a> - pentest lab, take your Hacking skills to the next level.<br>
  1208. &nbsp;&nbsp; <a href="https://www.root-me.org/?lang=en"><b>Root Me</b></a> - the fast, easy, and affordable way to train your hacking skills.<br>
  1209. &nbsp;&nbsp; <a href="https://rozwal.to/login"><b>rozwal.to</b></a> - a great platform to train your pentesting skills.<br>
  1210. &nbsp;&nbsp; <a href="https://tryhackme.com/"><b>TryHackMe</b></a> - learning Cyber Security made easy.<br>
  1211. &nbsp;&nbsp; <a href="https://hackxor.net/"><b>hackxor</b></a> - is a realistic web application hacking game, designed to help players of all abilities develop their skills.<br>
  1212. &nbsp;&nbsp; <a href="http://hack-yourself-first.com/"><b>Hack Yourself First</b></a> - it's full of nasty app sec holes.<br>
  1213. &nbsp;&nbsp; <a href="http://overthewire.org/wargames/"><b>OverTheWire</b></a> - can help you to learn and practice security concepts in the form of fun-filled games.<br>
  1214. &nbsp;&nbsp; <a href="https://labs.wizard-security.net/"><b>Wizard Labs</b></a> - is an online Penetration Testing Lab.<br>
  1215. &nbsp;&nbsp; <a href="https://pentesterlab.com/"><b>PentesterLab</b></a> - provides vulnerable systems that can be used to test and understand vulnerabilities.<br>
  1216. &nbsp;&nbsp; <a href="https://ringzer0ctf.com/"><b>RingZer0</b></a> - tons of challenges designed to test and improve your hacking skills.<br>
  1217. &nbsp;&nbsp; <a href="http://www.try2hack.nl/"><b>try2hack</b></a> - several security-oriented challenges for your entertainment.<br>
  1218. &nbsp;&nbsp; <a href="https://www.ubeeri.com/preconfig-labs"><b>Ubeeri</b></a> - preconfigured lab environments.<br>
  1219. &nbsp;&nbsp; <a href="https://lab.pentestit.ru/"><b>Pentestit</b></a> - emulate IT infrastructures of real companies for legal pen testing and improving pentest skills.<br>
  1220. &nbsp;&nbsp; <a href="https://microcorruption.com/login"><b>Microcorruption</b></a> - reversal challenges done in the web interface.<br>
  1221. &nbsp;&nbsp; <a href="https://crackmes.one/"><b>Crackmes</b></a> - download crackmes to help improve your reverse engineering skills.<br>
  1222. &nbsp;&nbsp; <a href="https://domgo.at/cxss/intro"><b>DomGoat</b></a> - DOM XSS security learning and practicing platform.<br>
  1223. &nbsp;&nbsp; <a href="https://chall.stypr.com"><b>Stereotyped Challenges</b></a> - upgrade your web hacking techniques today!<br>
  1224. &nbsp;&nbsp; <a href="https://www.vulnhub.com/"><b>Vulnhub</b></a> - allows anyone to gain practical 'hands-on' experience in digital security.<br>
  1225. &nbsp;&nbsp; <a href="https://w3challs.com/"><b>W3Challs</b></a> - is a penetration testing training platform, which offers various computer challenges.<br>
  1226. &nbsp;&nbsp; <a href="https://ringzer0ctf.com/challenges"><b>RingZer0 CTF</b></a> - offers you tons of challenges designed to test and improve your hacking skills.<br>
  1227. &nbsp;&nbsp; <a href="https://hack.me/"><b>Hack.me</b></a> - a platform where you can build, host and share vulnerable web apps for educational purposes.<br>
  1228. &nbsp;&nbsp; <a href="https://www.hackthis.co.uk/levels/"><b>HackThis!</b></a> - discover how hacks, dumps and defacements are performed and secure your website.<br>
  1229. &nbsp;&nbsp; <a href="https://www.enigmagroup.org/#"><b>Enigma Group WebApp Training</b></a> - these challenges cover the exploits listed in the OWASP Top 10 Project.<br>
  1230. &nbsp;&nbsp; <a href="https://challenges.re/"><b>Reverse Engineering Challenges</b></a> - challenges, exercises, problems and tasks - by level, by type, and more.<br>
  1231. &nbsp;&nbsp; <a href="https://0x00sec.org/"><b>0x00sec</b></a> - the home of the Hacker - Malware, Reverse Engineering, and Computer Science.<br>
  1232. &nbsp;&nbsp; <a href="https://www.wechall.net/challs"><b>We Chall</b></a> - there are exist a lots of different challenge types.<br>
  1233. &nbsp;&nbsp; <a href="https://www.hackergateway.com/"><b>Hacker Gateway</b></a> - is the go-to place for hackers who want to test their skills.<br>
  1234. &nbsp;&nbsp; <a href="https://www.hacker101.com/"><b>Hacker101</b></a> - is a free class for web security.<br>
  1235. &nbsp;&nbsp; <a href="https://contained.af/"><b>contained.af</b></a> - a stupid game for learning about containers, capabilities, and syscalls.<br>
  1236. &nbsp;&nbsp; <a href="http://flaws.cloud/"><b>flAWS challenge!</b></a> - a series of levels you'll learn about common mistakes and gotchas when using AWS.<br>
  1237. &nbsp;&nbsp; <a href="https://cybersecurity.wtf"><b>CyberSec WTF</b></a> - provides web hacking challenges derived from bounty write-ups.<br>
  1238. &nbsp;&nbsp; <a href="https://ctfchallenge.co.uk/login"><b>CTF Challenge</b></a> - CTF Web App challenges.<br>
  1239. &nbsp;&nbsp; <a href="https://capturetheflag.withgoogle.com"><b>gCTF</b></a> - most of the challenges used in the Google CTF 2017.<br>
  1240. &nbsp;&nbsp; <a href="https://www.hackthissite.org/pages/index/index.php"><b>Hack This Site</b></a> - is a free, safe and legal training ground for hackers.<br>
  1241. &nbsp;&nbsp; <a href="https://attackdefense.com"><b>Attack & Defense</b></a> - is a browser-based cloud labs.<br>
  1242. &nbsp;&nbsp; <a href="https://cryptohack.org/"><b>Cryptohack</b></a> - a fun platform for learning modern cryptography.<br>
  1243. &nbsp;&nbsp; <a href="https://cryptopals.com/"><b>Cryptopals</b></a> - the cryptopals crypto challenges.<br>
  1244. </p>
  1245. ##### :black_small_square: CTF platforms
  1246. <p>
  1247. &nbsp;&nbsp; <a href="https://github.com/facebook/fbctf"><b>fbctf</b></a> - platform to host Capture the Flag competitions.<br>
  1248. &nbsp;&nbsp; <a href="https://github.com/google/ctfscoreboard"><b>ctfscoreboard</b></a> - scoreboard for Capture The Flag competitions.<br>
  1249. </p>
  1250. ##### :black_small_square: Other resources
  1251. <p>
  1252. &nbsp;&nbsp; <a href="https://github.com/bugcrowd/bugcrowd_university"><b>Bugcrowd University</b></a> - open source education content for the researcher community.<br>
  1253. &nbsp;&nbsp; <a href="https://github.com/rewardone/OSCPRepo"><b>OSCPRepo</b></a> - a list of resources and scripts that I have been gathering in preparation for the OSCP.<br>
  1254. &nbsp;&nbsp; <a href="https://medium.com/@cxosmo/owasp-top-10-real-world-examples-part-1-a540c4ea2df5"><b>OWASP Top 10: Real-World Examples</b></a> - test your web apps with real-world examples (two-part series).<br>
  1255. &nbsp;&nbsp; <a href="http://phrack.org/index.html"><b>phrack.org</b></a> - an awesome collection of articles from several respected hackers and other thinkers.<br>
  1256. &nbsp;&nbsp; <a href="https://github.com/Gr1mmie/Practical-Ethical-Hacking-Resources"><b>Practical-Ethical-Hacking-Resources</b></a> - compilation of resources from TCM's Udemy Course.<br>
  1257. </p>
  1258. #### Your daily knowledge and news &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  1259. ##### :black_small_square: RSS Readers
  1260. <p>
  1261. &nbsp;&nbsp; <a href="https://feedly.com/"><b>Feedly</b></a> - organize, read and share what matters to you.<br>
  1262. &nbsp;&nbsp; <a href="https://www.inoreader.com/"><b>Inoreader</b></a> - similar to feedly with a support for filtering what you fetch from rss.<br>
  1263. </p>
  1264. ##### :black_small_square: IRC Channels
  1265. <p>
  1266. &nbsp;&nbsp; <a href="https://wiki.hackerspaces.org/IRC_Channel"><b>#hackerspaces</b></a> - hackerspace IRC channels.<br>
  1267. </p>
  1268. ##### :black_small_square: Security
  1269. <p>
  1270. &nbsp;&nbsp; <a href="https://thehackernews.com/"><b>The Hacker News</b></a> - leading news source dedicated to promoting awareness for security experts and hackers.<br>
  1271. &nbsp;&nbsp; <a href="https://latesthackingnews.com/"><b>Latest Hacking News</b></a> - provides the latest hacking news, exploits and vulnerabilities for ethical hackers.<br>
  1272. &nbsp;&nbsp; <a href="https://securitynewsletter.co/"><b>Security Newsletter</b></a> - security news as a weekly digest (email notifications).<br>
  1273. &nbsp;&nbsp; <a href="https://security.googleblog.com/"><b>Google Online Security Blog</b></a> - the latest news and insights from Google on security and safety on the Internet.<br>
  1274. &nbsp;&nbsp; <a href="https://blog.qualys.com/"><b>Qualys Blog</b></a> - expert network security guidance and news.<br>
  1275. &nbsp;&nbsp; <a href="https://www.darkreading.com/"><b>DARKReading</b></a> - connecting the Information Security Community.<br>
  1276. &nbsp;&nbsp; <a href="https://www.darknet.org.uk/"><b>Darknet</b></a> - latest hacking tools, hacker news, cybersecurity best practices, ethical hacking & pen-testing.<br>
  1277. &nbsp;&nbsp; <a href="https://twitter.com/disclosedh1"><b>publiclyDisclosed</b></a> - public disclosure watcher who keeps you up to date about the recently disclosed bugs.<br>
  1278. &nbsp;&nbsp; <a href="https://www.reddit.com/r/hacking/"><b>Reddit - Hacking</b></a> - a subreddit dedicated to hacking and hackers.<br>
  1279. &nbsp;&nbsp; <a href="https://packetstormsecurity.com/"><b>Packet Storm</b></a> - information security services, news, files, tools, exploits, advisories and whitepapers.<br>
  1280. &nbsp;&nbsp; <a href="https://sekurak.pl/"><b>Sekurak</b></a> - about security, penetration tests, vulnerabilities and many others (PL/EN).<br>
  1281. &nbsp;&nbsp; <a href="https://nfsec.pl/"><b>nf.sec</b></a> - basic aspects and mechanisms of Linux operating system security (PL).<br>
  1282. </p>
  1283. ##### :black_small_square: Other/All-in-one
  1284. <p>
  1285. &nbsp;&nbsp; <a href="https://changelog.com/"><b>Changelog</b></a> - is a community of hackers; news & podcasts for developers and hackers.<br>
  1286. </p>
  1287. #### Other Cheat Sheets &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  1288. ###### Build your own DNS Servers
  1289. <p>
  1290. &nbsp;&nbsp; <a href="https://calomel.org/unbound_dns.html"><b>Unbound DNS Tutorial</b></a> - a validating, recursive, and caching DNS server.<br>
  1291. &nbsp;&nbsp; <a href="https://www.ctrl.blog/entry/knot-dns-resolver-tutorial.html"><b>Knot Resolver on Fedora</b></a> - how to get faster and more secure DNS resolution with Knot Resolver on Fedora.<br>
  1292. &nbsp;&nbsp; <a href="https://www.aaflalo.me/2018/10/tutorial-setup-dns-over-https-server/"><b>DNS-over-HTTPS</b></a> - tutorial to setup your own DNS-over-HTTPS (DoH) server.<br>
  1293. &nbsp;&nbsp; <a href="https://hacks.mozilla.org/2018/05/a-cartoon-intro-to-dns-over-https/"><b>dns-over-https</b></a> - a cartoon intro to DNS over HTTPS.<br>
  1294. &nbsp;&nbsp; <a href="https://www.aaflalo.me/2019/03/dns-over-tls/"><b>DNS-over-TLS</b></a> - following to your DoH server, setup your DNS-over-TLS (DoT) server.<br>
  1295. &nbsp;&nbsp; <a href="https://zwischenzugs.com/2018/01/26/how-and-why-i-run-my-own-dns-servers/"><b>DNS Servers</b></a> - how (and why) i run my own DNS Servers.<br>
  1296. </p>
  1297. ###### Build your own Certificate Authority
  1298. <p>
  1299. &nbsp;&nbsp; <a href="https://jamielinux.com/docs/openssl-certificate-authority/"><b>OpenSSL Certificate Authority</b></a> - build your own certificate authority (CA) using the OpenSSL tools.<br>
  1300. &nbsp;&nbsp; <a href="https://github.com/smallstep/certificates"><b>step-ca Certificate Authority</b></a> - build your own certificate authority (CA) using open source step-ca.<br>
  1301. </p>
  1302. ###### Build your own System/Virtual Machine
  1303. <p>
  1304. &nbsp;&nbsp; <a href="https://github.com/cfenollosa/os-tutorial"><b>os-tutorial</b></a> - how to create an OS from scratch.<br>
  1305. &nbsp;&nbsp; <a href="https://justinmeiners.github.io/lc3-vm/"><b>Write your Own Virtual Machine</b></a> - how to write your own virtual machine (VM).<br>
  1306. &nbsp;&nbsp; <a href="https://github.com/cirosantilli/x86-bare-metal-examples"><b>x86 Bare Metal Examples</b></a> - dozens of minimal operating systems to learn x86 system programming.<br>
  1307. &nbsp;&nbsp; <a href="https://github.com/djhworld/simple-computer"><b>simple-computer</b></a> - the scott CPU from "But How Do It Know?" by J. Clark Scott.<br>
  1308. &nbsp;&nbsp; <a href="https://littleosbook.github.io/"><b>littleosbook</b></a> - the little book about OS development.<br>
  1309. </p>
  1310. ###### DNS Servers list (privacy)
  1311. | <b><u>IP</u></b> | <b><u>URL</u></b> |
  1312. | :--- | :--- |
  1313. | **`84.200.69.80`** | [dns.watch](https://dns.watch/) |
  1314. | **`94.247.43.254`** | [opennic.org](https://www.opennic.org/) |
  1315. | **`64.6.64.6`** | [verisign.com](https://www.verisign.com/en_US/security-services/public-dns/index.xhtml) |
  1316. | **`89.233.43.71`** | [censurfridns.dk](https://blog.uncensoreddns.org/) |
  1317. | **`1.1.1.1`** | [cloudflare.com](https://1.1.1.1/) |
  1318. | **`94.130.110.185`** | [dnsprivacy.at](https://dnsprivacy.at/) |
  1319. ###### TOP Browser extensions
  1320. | <b><u>Extension name</u></b> | <b><u>Description</u></b> |
  1321. | :--- | :--- |
  1322. | **`IPvFoo`** | Display the server IP address and HTTPS information across all page elements. |
  1323. | **`FoxyProxy`** | Simplifies configuring browsers to access proxy-servers. |
  1324. | **`HTTPS Everywhere`** | Automatically use HTTPS security on many sites. |
  1325. | **`uMatrix`** | Point & click to forbid/allow any class of requests made by your browser. |
  1326. | **`uBlock Origin`** | An efficient blocker: easy on memory and CPU footprint. |
  1327. | **`Session Buddy`** | Manage browser tabs and bookmarks with ease. |
  1328. | **`SuperSorter`** | Sort bookmarks recursively, delete duplicates, merge folders, and more. |
  1329. | **`Clear Cache`** | Clear your cache and browsing data. |
  1330. | **`d3coder`** | Encoding/Decoding plugin for various types of encoding. |
  1331. | **`Web Developer`** | Adds a toolbar button with various web developer tools. |
  1332. | **`ThreatPinch Lookup`** | Add threat intelligence hover tool tips. |
  1333. ###### TOP Burp extensions
  1334. | <b><u>Extension name</u></b> | <b><u>Description</u></b> |
  1335. | :--- | :--- |
  1336. | **`Active Scan++`** | Extends Burp's active and passive scanning capabilities. |
  1337. | **`Autorize`** | Automatically detects authorization enforcement. |
  1338. | **`AuthMatrix`** | A simple matrix grid to define the desired levels of access privilege. |
  1339. | **`Logger++`** | Logs requests and responses for all Burp tools in a sortable table. |
  1340. | **`Bypass WAF`** | Adds headers useful for bypassing some WAF devices. |
  1341. | **`JSON Beautifier`** | Beautifies JSON content in the HTTP message viewer. |
  1342. | **`JSON Web Tokens`** | Enables Burp to decode and manipulate JSON web tokens. |
  1343. | **`CSP Auditor`** | Displays CSP headers for responses, and passively reports CSP weaknesses. |
  1344. | **`CSP-Bypass`** | Passively scans for CSP headers that contain known bypasses. |
  1345. | **`Hackvertor`** | Converts data using a tag-based configuration to apply various encoding. |
  1346. | **`HTML5 Auditor`** | Scans for usage of risky HTML5 features. |
  1347. | **`Software Vulnerability Scanner`** | Vulnerability scanner based on vulners.com audit API. |
  1348. | **`Turbo Intruder`** | Is a powerful bruteforcing tool. |
  1349. | **`Upload Scanner`** | Upload a number of different file types, laced with different forms of payload. |
  1350. ###### Hack Mozilla Firefox address bar
  1351. In Firefox's address bar, you can limit results by typing special characters before or after your term:
  1352. - `^` - for matches in your browsing history
  1353. - `*` - for matches in your bookmarks.
  1354. - `%` - for matches in your currently open tabs.
  1355. - `#` - for matches in page titles.
  1356. - `@` - for matches in web addresses.
  1357. ###### Chrome hidden commands
  1358. - `chrome://chrome-urls` - list of all commands
  1359. - `chrome://flags` - enable experiments and development features
  1360. - `chrome://interstitials` - errors and warnings
  1361. - `chrome://net-internals` - network internals (events, dns, cache)
  1362. - `chrome://network-errors` - network errors
  1363. - `chrome://net-export` - start logging future network activity to a file
  1364. - `chrome://safe-browsing` - safe browsing options
  1365. - `chrome://user-actions` - record all user actions
  1366. - `chrome://restart` - restart chrome
  1367. - `chrome://dino` - ERR_INTERNET_DISCONNECTED...
  1368. - `cache:<website-address>` - view the cached version of the web page
  1369. ###### Bypass WAFs by Shortening IP Address (by [0xInfection](https://twitter.com/0xInfection))
  1370. IP addresses can be shortened by dropping the zeroes:
  1371. ```
  1372. http://1.0.0.1 → http://1.1
  1373. http://127.0.0.1 → http://127.1
  1374. http://192.168.0.1 → http://192.168.1
  1375. http://0xC0A80001 or http://3232235521 → 192.168.0.1
  1376. http://192.168.257 → 192.168.1.1
  1377. http://192.168.516 → 192.168.2.4
  1378. ```
  1379. > This bypasses WAF filters for SSRF, open-redirect, etc where any IP as input gets blacklisted.
  1380. For more information please see [How to Obscure Any URL](http://www.pc-help.org/obscure.htm) and [Magic IP Address Shortcuts](https://stuff-things.net/2014/09/25/magic-ip-address-shortcuts/).
  1381. ###### Hashing, encryption and encoding (by [Michal Špaček](https://twitter.com/spazef0rze))
  1382. _Hashing_
  1383. plaintext :arrow_right: hash<br>
  1384. hash :no_entry: plaintext
  1385. _Symmetric encryption_
  1386. plaintext :arrow_right: :key: :arrow_right: ciphertext<br>
  1387. plaintext :arrow_left: :key: :arrow_left: ciphertext<br>
  1388. (:key: shared key)
  1389. _Asymmetric encryption_
  1390. plaintext :arrow_right: :key: :arrow_right: ciphertext<br>
  1391. plaintext :arrow_left: :part_alternation_mark: :arrow_left: ciphertext<br>
  1392. (:key: public key, :part_alternation_mark: private key)<br>
  1393. _Encoding_
  1394. text :arrow_right: encoded<br>
  1395. text :arrow_left: encoded
  1396. #### Shell One-liners &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  1397. ##### Table of Contents
  1398. * [terminal](#tool-terminal)
  1399. * [busybox](#tool-busybox)
  1400. * [mount](#tool-mount)
  1401. * [fuser](#tool-fuser)
  1402. * [lsof](#tool-lsof)
  1403. * [ps](#tool-ps)
  1404. * [top](#tool-top)
  1405. * [vmstat](#tool-vmstat)
  1406. * [iostat](#tool-iostat)
  1407. * [strace](#tool-strace)
  1408. * [kill](#tool-kill)
  1409. * [find](#tool-find)
  1410. * [diff](#tool-diff)
  1411. * [vimdiff](#tool-vimdiff)
  1412. * [tail](#tool-tail)
  1413. * [cpulimit](#tool-cpulimit)
  1414. * [pwdx](#tool-pwdx)
  1415. * [tr](#tool-tr)
  1416. * [chmod](#tool-chmod)
  1417. * [who](#tool-who)
  1418. * [last](#tool-last)
  1419. * [screen](#tool-screen)
  1420. * [script](#tool-script)
  1421. * [du](#tool-du)
  1422. * [inotifywait](#tool-inotifywait)
  1423. * [openssl](#tool-openssl)
  1424. * [secure-delete](#tool-secure-delete)
  1425. * [dd](#tool-dd)
  1426. * [gpg](#tool-gpg)
  1427. * [system-other](#tool-system-other)
  1428. * [curl](#tool-curl)
  1429. * [httpie](#tool-httpie)
  1430. * [ssh](#tool-ssh)
  1431. * [linux-dev](#tool-linux-dev)
  1432. * [tcpdump](#tool-tcpdump)
  1433. * [tcpick](#tool-tcpick)
  1434. * [ngrep](#tool-ngrep)
  1435. * [hping3](#tool-hping3)
  1436. * [nmap](#tool-nmap)
  1437. * [netcat](#tool-netcat)
  1438. * [socat](#tool-socat)
  1439. * [p0f](#tool-p0f)
  1440. * [gnutls-cli](#tool-gnutls-cli)
  1441. * [netstat](#tool-netstat)
  1442. * [rsync](#tool-rsync)
  1443. * [host](#tool-host)
  1444. * [dig](#tool-dig)
  1445. * [certbot](#tool-certbot)
  1446. * [network-other](#tool-network-other)
  1447. * [git](#tool-git)
  1448. * [awk](#tool-awk)
  1449. * [sed](#tool-sed)
  1450. * [grep](#tool-grep)
  1451. * [perl](#tool-perl)
  1452. ##### Tool: [terminal](https://en.wikipedia.org/wiki/Linux_console)
  1453. ###### Reload shell without exit
  1454. ```bash
  1455. exec $SHELL -l
  1456. ```
  1457. ###### Close shell keeping all subprocess running
  1458. ```bash
  1459. disown -a && exit
  1460. ```
  1461. ###### Exit without saving shell history
  1462. ```bash
  1463. kill -9 $$
  1464. unset HISTFILE && exit
  1465. ```
  1466. ###### Perform a branching conditional
  1467. ```bash
  1468. true && echo success
  1469. false || echo failed
  1470. ```
  1471. ###### Pipe stdout and stderr to separate commands
  1472. ```bash
  1473. some_command > >(/bin/cmd_for_stdout) 2> >(/bin/cmd_for_stderr)
  1474. ```
  1475. ###### Redirect stdout and stderr each to separate files and print both to the screen
  1476. ```bash
  1477. (some_command 2>&1 1>&3 | tee errorlog ) 3>&1 1>&2 | tee stdoutlog
  1478. ```
  1479. ###### List of commands you use most often
  1480. ```bash
  1481. history | \
  1482. awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | \
  1483. grep -v "./" | \
  1484. column -c3 -s " " -t | \
  1485. sort -nr | nl | head -n 20
  1486. ```
  1487. ###### Sterilize bash history
  1488. ```bash
  1489. function sterile() {
  1490. history | awk '$2 != "history" { $1=""; print $0 }' | egrep -vi "\
  1491. curl\b+.*(-E|--cert)\b+.*\b*|\
  1492. curl\b+.*--pass\b+.*\b*|\
  1493. curl\b+.*(-U|--proxy-user).*:.*\b*|\
  1494. curl\b+.*(-u|--user).*:.*\b*
  1495. .*(-H|--header).*(token|auth.*)\b+.*|\
  1496. wget\b+.*--.*password\b+.*\b*|\
  1497. http.?://.+:.+@.*\
  1498. " > $HOME/histbuff; history -r $HOME/histbuff;
  1499. }
  1500. export PROMPT_COMMAND="sterile"
  1501. ```
  1502. > Look also: [A naive utility to censor credentials in command history](https://github.com/lbonanomi/go/blob/master/revisionist.go).
  1503. ###### Quickly backup a file
  1504. ```bash
  1505. cp filename{,.orig}
  1506. ```
  1507. ###### Empty a file (truncate to 0 size)
  1508. ```bash
  1509. >filename
  1510. ```
  1511. ###### Delete all files in a folder that don't match a certain file extension
  1512. ```bash
  1513. rm !(*.foo|*.bar|*.baz)
  1514. ```
  1515. ###### Pass multi-line string to a file
  1516. ```bash
  1517. # cat >filename ... - overwrite the file
  1518. # cat >>filename ... - append to a file
  1519. cat > filename << __EOF__
  1520. data data data
  1521. __EOF__
  1522. ```
  1523. ###### Edit a file on a remote host using vim
  1524. ```bash
  1525. vim scp://user@host//etc/fstab
  1526. ```
  1527. ###### Create a directory and change into it at the same time
  1528. ```bash
  1529. mkd() { mkdir -p "$@" && cd "$@"; }
  1530. ```
  1531. ###### Convert uppercase files to lowercase files
  1532. ```bash
  1533. rename 'y/A-Z/a-z/' *
  1534. ```
  1535. ###### Print a row of characters across the terminal
  1536. ```bash
  1537. printf "%`tput cols`s" | tr ' ' '#'
  1538. ```
  1539. ###### Show shell history without line numbers
  1540. ```bash
  1541. history | cut -c 8-
  1542. fc -l -n 1 | sed 's/^\s*//'
  1543. ```
  1544. ###### Run command(s) after exit session
  1545. ```bash
  1546. cat > /etc/profile << __EOF__
  1547. _after_logout() {
  1548. username=$(whoami)
  1549. for _pid in $(ps afx | grep sshd | grep "$username" | awk '{print $1}') ; do
  1550. kill -9 $_pid
  1551. done
  1552. }
  1553. trap _after_logout EXIT
  1554. __EOF__
  1555. ```
  1556. ###### Generate a sequence of numbers
  1557. ```bash
  1558. for ((i=1; i<=10; i+=2)) ; do echo $i ; done
  1559. # alternative: seq 1 2 10
  1560. for ((i=5; i<=10; ++i)) ; do printf '%02d\n' $i ; done
  1561. # alternative: seq -w 5 10
  1562. for i in {1..10} ; do echo $i ; done
  1563. ```
  1564. ###### Simple Bash filewatching
  1565. ```bash
  1566. unset MAIL; export MAILCHECK=1; export MAILPATH='$FILE_TO_WATCH?$MESSAGE'
  1567. ```
  1568. ---
  1569. ##### Tool: [busybox](https://www.busybox.net/)
  1570. ###### Static HTTP web server
  1571. ```bash
  1572. busybox httpd -p $PORT -h $HOME [-c httpd.conf]
  1573. ```
  1574. ___
  1575. ##### Tool: [mount](https://en.wikipedia.org/wiki/Mount_(Unix))
  1576. ###### Mount a temporary ram partition
  1577. ```bash
  1578. mount -t tmpfs tmpfs /mnt -o size=64M
  1579. ```
  1580. * `-t` - filesystem type
  1581. * `-o` - mount options
  1582. ###### Remount a filesystem as read/write
  1583. ```bash
  1584. mount -o remount,rw /
  1585. ```
  1586. ___
  1587. ##### Tool: [fuser](https://en.wikipedia.org/wiki/Fuser_(Unix))
  1588. ###### Show which processes use the files/directories
  1589. ```bash
  1590. fuser /var/log/daemon.log
  1591. fuser -v /home/supervisor
  1592. ```
  1593. ###### Kills a process that is locking a file
  1594. ```bash
  1595. fuser -ki filename
  1596. ```
  1597. * `-i` - interactive option
  1598. ###### Kills a process that is locking a file with specific signal
  1599. ```bash
  1600. fuser -k -HUP filename
  1601. ```
  1602. * `--list-signals` - list available signal names
  1603. ###### Show what PID is listening on specific port
  1604. ```bash
  1605. fuser -v 53/udp
  1606. ```
  1607. ###### Show all processes using the named filesystems or block device
  1608. ```bash
  1609. fuser -mv /var/www
  1610. ```
  1611. ___
  1612. ##### Tool: [lsof](https://en.wikipedia.org/wiki/Lsof)
  1613. ###### Show process that use internet connection at the moment
  1614. ```bash
  1615. lsof -P -i -n
  1616. ```
  1617. ###### Show process that use specific port number
  1618. ```bash
  1619. lsof -i tcp:443
  1620. ```
  1621. ###### Lists all listening ports together with the PID of the associated process
  1622. ```bash
  1623. lsof -Pan -i tcp -i udp
  1624. ```
  1625. ###### List all open ports and their owning executables
  1626. ```bash
  1627. lsof -i -P | grep -i "listen"
  1628. ```
  1629. ###### Show all open ports
  1630. ```bash
  1631. lsof -Pnl -i
  1632. ```
  1633. ###### Show open ports (LISTEN)
  1634. ```bash
  1635. lsof -Pni4 | grep LISTEN | column -t
  1636. ```
  1637. ###### List all files opened by a particular command
  1638. ```bash
  1639. lsof -c "process"
  1640. ```
  1641. ###### View user activity per directory
  1642. ```bash
  1643. lsof -u username -a +D /etc
  1644. ```
  1645. ###### Show 10 largest open files
  1646. ```bash
  1647. lsof / | \
  1648. awk '{ if($7 > 1048576) print $7/1048576 "MB" " " $9 " " $1 }' | \
  1649. sort -n -u | tail | column -t
  1650. ```
  1651. ###### Show current working directory of a process
  1652. ```bash
  1653. lsof -p <PID> | grep cwd
  1654. ```
  1655. ___
  1656. ##### Tool: [ps](https://en.wikipedia.org/wiki/Ps_(Unix))
  1657. ###### Show a 4-way scrollable process tree with full details
  1658. ```bash
  1659. ps awwfux | less -S
  1660. ```
  1661. ###### Processes per user counter
  1662. ```bash
  1663. ps hax -o user | sort | uniq -c | sort -r
  1664. ```
  1665. ###### Show all processes by name with main header
  1666. ```bash
  1667. ps -lfC nginx
  1668. ```
  1669. ___
  1670. ##### Tool: [find](https://en.wikipedia.org/wiki/Find_(Unix))
  1671. ###### Find files that have been modified on your system in the past 60 minutes
  1672. ```bash
  1673. find / -mmin 60 -type f
  1674. ```
  1675. ###### Find all files larger than 20M
  1676. ```bash
  1677. find / -type f -size +20M
  1678. ```
  1679. ###### Find duplicate files (based on MD5 hash)
  1680. ```bash
  1681. find -type f -exec md5sum '{}' ';' | sort | uniq --all-repeated=separate -w 33
  1682. ```
  1683. ###### Change permission only for files
  1684. ```bash
  1685. cd /var/www/site && find . -type f -exec chmod 766 {} \;
  1686. cd /var/www/site && find . -type f -exec chmod 664 {} +
  1687. ```
  1688. ###### Change permission only for directories
  1689. ```bash
  1690. cd /var/www/site && find . -type d -exec chmod g+x {} \;
  1691. cd /var/www/site && find . -type d -exec chmod g+rwx {} +
  1692. ```
  1693. ###### Find files and directories for specific user/group
  1694. ```bash
  1695. # User:
  1696. find . -user <username> -print
  1697. find /etc -type f -user <username> -name "*.conf"
  1698. # Group:
  1699. find /opt -group <group>
  1700. find /etc -type f -group <group> -iname "*.conf"
  1701. ```
  1702. ###### Find files and directories for all without specific user/group
  1703. ```bash
  1704. # User:
  1705. find . \! -user <username> -print
  1706. # Group:
  1707. find . \! -group <group>
  1708. ```
  1709. ###### Looking for files/directories that only have certain permission
  1710. ```bash
  1711. # User
  1712. find . -user <username> -perm -u+rw # -rw-r--r--
  1713. find /home -user $(whoami) -perm 777 # -rwxrwxrwx
  1714. # Group:
  1715. find /home -type d -group <group> -perm 755 # -rwxr-xr-x
  1716. ```
  1717. ###### Delete older files than 60 days
  1718. ```bash
  1719. find . -type f -mtime +60 -delete
  1720. ```
  1721. ###### Recursively remove all empty sub-directories from a directory
  1722. ```bash
  1723. find . -depth -type d -empty -exec rmdir {} \;
  1724. ```
  1725. ###### How to find all hard links to a file
  1726. ```bash
  1727. find </path/to/dir> -xdev -samefile filename
  1728. ```
  1729. ###### Recursively find the latest modified files
  1730. ```bash
  1731. find . -type f -exec stat --format '%Y :%y %n' "{}" \; | sort -nr | cut -d: -f2- | head
  1732. ```
  1733. ###### Recursively find/replace of a string with sed
  1734. ```bash
  1735. find . -not -path '*/\.git*' -type f -print0 | xargs -0 sed -i 's/foo/bar/g'
  1736. ```
  1737. ###### Recursively find/replace of a string in directories and file names
  1738. ```bash
  1739. find . -depth -name '*test*' -execdir bash -c 'mv -v "$1" "${1//foo/bar}"' _ {} \;
  1740. ```
  1741. ###### Recursively find suid executables
  1742. ```bash
  1743. find / \( -perm -4000 -o -perm -2000 \) -type f -exec ls -la {} \;
  1744. ```
  1745. ___
  1746. ##### Tool: [top](https://en.wikipedia.org/wiki/Top_(software))
  1747. ###### Use top to monitor only all processes with the specific string
  1748. ```bash
  1749. top -p $(pgrep -d , <str>)
  1750. ```
  1751. * `<str>` - process containing string (eg. nginx, worker)
  1752. ___
  1753. ##### Tool: [vmstat](https://en.wikipedia.org/wiki/Vmstat)
  1754. ###### Show current system utilization (fields in kilobytes)
  1755. ```bash
  1756. vmstat 2 20 -t -w
  1757. ```
  1758. * `2` - number of times with a defined time interval (delay)
  1759. * `20` - each execution of the command (count)
  1760. * `-t` - show timestamp
  1761. * `-w` - wide output
  1762. * `-S M` - output of the fields in megabytes instead of kilobytes
  1763. ###### Show current system utilization will get refreshed every 5 seconds
  1764. ```bash
  1765. vmstat 5 -w
  1766. ```
  1767. ###### Display report a summary of disk operations
  1768. ```bash
  1769. vmstat -D
  1770. ```
  1771. ###### Display report of event counters and memory stats
  1772. ```bash
  1773. vmstat -s
  1774. ```
  1775. ###### Display report about kernel objects stored in slab layer cache
  1776. ```bash
  1777. vmstat -m
  1778. ```
  1779. ##### Tool: [iostat](https://en.wikipedia.org/wiki/Iostat)
  1780. ###### Show information about the CPU usage, and I/O statistics about all the partitions
  1781. ```bash
  1782. iostat 2 10 -t -m
  1783. ```
  1784. * `2` - number of times with a defined time interval (delay)
  1785. * `10` - each execution of the command (count)
  1786. * `-t` - show timestamp
  1787. * `-m` - fields in megabytes (`-k` - in kilobytes, default)
  1788. ###### Show information only about the CPU utilization
  1789. ```bash
  1790. iostat 2 10 -t -m -c
  1791. ```
  1792. ###### Show information only about the disk utilization
  1793. ```bash
  1794. iostat 2 10 -t -m -d
  1795. ```
  1796. ###### Show information only about the LVM utilization
  1797. ```bash
  1798. iostat -N
  1799. ```
  1800. ___
  1801. ##### Tool: [strace](https://en.wikipedia.org/wiki/Strace)
  1802. ###### Track with child processes
  1803. ```bash
  1804. # 1)
  1805. strace -f -p $(pidof glusterfsd)
  1806. # 2)
  1807. strace -f $(pidof php-fpm | sed 's/\([0-9]*\)/\-p \1/g')
  1808. ```
  1809. ###### Track process with 30 seconds limit
  1810. ```bash
  1811. timeout 30 strace $(< /var/run/zabbix/zabbix_agentd.pid)
  1812. ```
  1813. ###### Track processes and redirect output to a file
  1814. ```bash
  1815. ps auxw | grep '[a]pache' | awk '{print " -p " $2}' | \
  1816. xargs strace -o /tmp/strace-apache-proc.out
  1817. ```
  1818. ###### Track with print time spent in each syscall and limit length of print strings
  1819. ```bash
  1820. ps auxw | grep '[i]init_policy' | awk '{print " -p " $2}' | \
  1821. xargs strace -f -e trace=network -T -s 10000
  1822. ```
  1823. ###### Track the open request of a network port
  1824. ```bash
  1825. strace -f -e trace=bind nc -l 80
  1826. ```
  1827. ###### Track the open request of a network port (show TCP/UDP)
  1828. ```bash
  1829. strace -f -e trace=network nc -lu 80
  1830. ```
  1831. ___
  1832. ##### Tool: [kill](https://en.wikipedia.org/wiki/Kill_(command))
  1833. ###### Kill a process running on port
  1834. ```bash
  1835. kill -9 $(lsof -i :<port> | awk '{l=$2} END {print l}')
  1836. ```
  1837. ___
  1838. ##### Tool: [diff](https://en.wikipedia.org/wiki/Diff)
  1839. ###### Compare two directory trees
  1840. ```bash
  1841. diff <(cd directory1 && find | sort) <(cd directory2 && find | sort)
  1842. ```
  1843. ###### Compare output of two commands
  1844. ```bash
  1845. diff <(cat /etc/passwd) <(cut -f2 /etc/passwd)
  1846. ```
  1847. ___
  1848. ##### Tool: [vimdiff](http://vimdoc.sourceforge.net/htmldoc/diff.html)
  1849. ###### Highlight the exact differences, based on characters and words
  1850. ```bash
  1851. vimdiff file1 file2
  1852. ```
  1853. ###### Compare two JSON files
  1854. ```bash
  1855. vimdiff <(jq -S . A.json) <(jq -S . B.json)
  1856. ```
  1857. ###### Compare Hex dump
  1858. ```bash
  1859. d(){ vimdiff <(f $1) <(f $2);};f(){ hexdump -C $1 | cut -d' ' -f3- | tr -s ' ';}; d ~/bin1 ~/bin2
  1860. ```
  1861. ###### diffchar
  1862. Save [diffchar](https://raw.githubusercontent.com/vim-scripts/diffchar.vim/master/plugin/diffchar.vim) @ `~/.vim/plugins`
  1863. Click `F7` to switch between diff modes
  1864. Usefull `vimdiff` commands:
  1865. * `qa` to exit all windows
  1866. * `:vertical resize 70` to resize window
  1867. * set window width `Ctrl+W [N columns]+(Shift+)<\>`
  1868. ___
  1869. ##### Tool: [tail](https://en.wikipedia.org/wiki/Tail_(Unix))
  1870. ###### Annotate tail -f with timestamps
  1871. ```bash
  1872. tail -f file | while read ; do echo "$(date +%T.%N) $REPLY" ; done
  1873. ```
  1874. ###### Analyse an Apache access log for the most common IP addresses
  1875. ```bash
  1876. tail -10000 access_log | awk '{print $1}' | sort | uniq -c | sort -n | tail
  1877. ```
  1878. ###### Analyse web server log and show only 5xx http codes
  1879. ```bash
  1880. tail -n 100 -f /path/to/logfile | grep "HTTP/[1-2].[0-1]\" [5]"
  1881. ```
  1882. ___
  1883. ##### Tool: [tar](https://en.wikipedia.org/wiki/Tar_(computing))
  1884. ###### System backup with exclude specific directories
  1885. ```bash
  1886. cd /
  1887. tar -czvpf /mnt/system$(date +%d%m%Y%s).tgz --directory=/ \
  1888. --exclude=proc/* --exclude=sys/* --exclude=dev/* --exclude=mnt/* .
  1889. ```
  1890. ###### System backup with exclude specific directories (pigz)
  1891. ```bash
  1892. cd /
  1893. tar cvpf /backup/snapshot-$(date +%d%m%Y%s).tgz --directory=/ \
  1894. --exclude=proc/* --exclude=sys/* --exclude=dev/* \
  1895. --exclude=mnt/* --exclude=tmp/* --use-compress-program=pigz .
  1896. ```
  1897. ___
  1898. ##### Tool: [dump](https://en.wikipedia.org/wiki/Dump_(program))
  1899. ###### System backup to file
  1900. ```bash
  1901. dump -y -u -f /backup/system$(date +%d%m%Y%s).lzo /
  1902. ```
  1903. ###### Restore system from lzo file
  1904. ```bash
  1905. cd /
  1906. restore -rf /backup/system$(date +%d%m%Y%s).lzo
  1907. ```
  1908. ___
  1909. ##### Tool: [cpulimit](http://cpulimit.sourceforge.net/)
  1910. ###### Limit the cpu usage of a process
  1911. ```bash
  1912. cpulimit -p pid -l 50
  1913. ```
  1914. ___
  1915. ##### Tool: [pwdx](https://www.cyberciti.biz/faq/unix-linux-pwdx-command-examples-usage-syntax/)
  1916. ###### Show current working directory of a process
  1917. ```bash
  1918. pwdx <pid>
  1919. ```
  1920. ___
  1921. ##### Tool: [taskset](https://www.cyberciti.biz/faq/taskset-cpu-affinity-command/)
  1922. ###### Start a command on only one CPU core
  1923. ```bash
  1924. taskset -c 0 <command>
  1925. ```
  1926. ___
  1927. ##### Tool: [tr](https://en.wikipedia.org/wiki/Tr_(Unix))
  1928. ###### Show directories in the PATH, one per line
  1929. ```bash
  1930. tr : '\n' <<<$PATH
  1931. ```
  1932. ___
  1933. ##### Tool: [chmod](https://en.wikipedia.org/wiki/Chmod)
  1934. ###### Remove executable bit from all files in the current directory
  1935. ```bash
  1936. chmod -R -x+X *
  1937. ```
  1938. ###### Restore permission for /bin/chmod
  1939. ```bash
  1940. # 1:
  1941. cp /bin/ls chmod.01
  1942. cp /bin/chmod chmod.01
  1943. ./chmod.01 700 file
  1944. # 2:
  1945. /bin/busybox chmod 0700 /bin/chmod
  1946. # 3:
  1947. setfacl --set u::rwx,g::---,o::--- /bin/chmod
  1948. ```
  1949. ___
  1950. ##### Tool: [who](https://en.wikipedia.org/wiki/Who_(Unix))
  1951. ###### Find last reboot time
  1952. ```bash
  1953. who -b
  1954. ```
  1955. ###### Detect a user sudo-su'd into the current shell
  1956. ```bash
  1957. [[ $(who -m | awk '{ print $1 }') == $(whoami) ]] || echo "You are su-ed to $(whoami)"
  1958. ```
  1959. ___
  1960. ##### Tool: [last](https://www.howtoforge.com/linux-last-command/)
  1961. ###### Was the last reboot a panic?
  1962. ```bash
  1963. (last -x -f $(ls -1t /var/log/wtmp* | head -2 | tail -1); last -x -f /var/log/wtmp) | \
  1964. grep -A1 reboot | head -2 | grep -q shutdown && echo "Expected reboot" || echo "Panic reboot"
  1965. ```
  1966. ___
  1967. ##### Tool: [screen](https://en.wikipedia.org/wiki/GNU_Screen)
  1968. ###### Start screen in detached mode
  1969. ```bash
  1970. screen -d -m <command>
  1971. ```
  1972. ###### Attach to an existing screen session
  1973. ```bash
  1974. screen -r -d <pid>
  1975. ```
  1976. ___
  1977. ##### Tool: [script](https://en.wikipedia.org/wiki/Script_(Unix))
  1978. ###### Record and replay terminal session
  1979. ```bash
  1980. ### Record session
  1981. # 1)
  1982. script -t 2>~/session.time -a ~/session.log
  1983. # 2)
  1984. script --timing=session.time session.log
  1985. ### Replay session
  1986. scriptreplay --timing=session.time session.log
  1987. ```
  1988. ___
  1989. ##### Tool: [du](https://en.wikipedia.org/wiki/GNU_Screen)
  1990. ###### Show 20 biggest directories with 'K M G'
  1991. ```bash
  1992. du | \
  1993. sort -r -n | \
  1994. awk '{split("K M G",v); s=1; while($1>1024){$1/=1024; s++} print int($1)" "v[s]"\t"$2}' | \
  1995. head -n 20
  1996. ```
  1997. ___
  1998. ##### Tool: [inotifywait](https://en.wikipedia.org/wiki/GNU_Screen)
  1999. ###### Init tool everytime a file in a directory is modified
  2000. ```bash
  2001. while true ; do inotifywait -r -e MODIFY dir/ && ls dir/ ; done;
  2002. ```
  2003. ___
  2004. ##### Tool: [openssl](https://www.openssl.org/)
  2005. ###### Testing connection to the remote host
  2006. ```bash
  2007. echo | openssl s_client -connect google.com:443 -showcerts
  2008. ```
  2009. ###### Testing connection to the remote host (debug mode)
  2010. ```bash
  2011. echo | openssl s_client -connect google.com:443 -showcerts -tlsextdebug -status
  2012. ```
  2013. ###### Testing connection to the remote host (with SNI support)
  2014. ```bash
  2015. echo | openssl s_client -showcerts -servername google.com -connect google.com:443
  2016. ```
  2017. ###### Testing connection to the remote host with specific ssl version
  2018. ```bash
  2019. openssl s_client -tls1_2 -connect google.com:443
  2020. ```
  2021. ###### Testing connection to the remote host with specific ssl cipher
  2022. ```bash
  2023. openssl s_client -cipher 'AES128-SHA' -connect google.com:443
  2024. ```
  2025. ###### Verify 0-RTT
  2026. ```bash
  2027. _host="example.com"
  2028. cat > req.in << __EOF__
  2029. HEAD / HTTP/1.1
  2030. Host: $_host
  2031. Connection: close
  2032. __EOF__
  2033. openssl s_client -connect ${_host}:443 -tls1_3 -sess_out session.pem -ign_eof < req.in
  2034. openssl s_client -connect ${_host}:443 -tls1_3 -sess_in session.pem -early_data req.in
  2035. ```
  2036. ###### Generate private key without passphrase
  2037. ```bash
  2038. # _len: 2048, 4096
  2039. ( _fd="private.key" ; _len="2048" ; \
  2040. openssl genrsa -out ${_fd} ${_len} )
  2041. ```
  2042. ###### Generate private key with passphrase
  2043. ```bash
  2044. # _ciph: aes128, aes256
  2045. # _len: 2048, 4096
  2046. ( _ciph="aes128" ; _fd="private.key" ; _len="2048" ; \
  2047. openssl genrsa -${_ciph} -out ${_fd} ${_len} )
  2048. ```
  2049. ###### Remove passphrase from private key
  2050. ```bash
  2051. ( _fd="private.key" ; _fd_unp="private_unp.key" ; \
  2052. openssl rsa -in ${_fd} -out ${_fd_unp} )
  2053. ```
  2054. ###### Encrypt existing private key with a passphrase
  2055. ```bash
  2056. # _ciph: aes128, aes256
  2057. ( _ciph="aes128" ; _fd="private.key" ; _fd_pass="private_pass.key" ; \
  2058. openssl rsa -${_ciph} -in ${_fd} -out ${_fd_pass}
  2059. ```
  2060. ###### Check private key
  2061. ```bash
  2062. ( _fd="private.key" ; \
  2063. openssl rsa -check -in ${_fd} )
  2064. ```
  2065. ###### Get public key from private key
  2066. ```bash
  2067. ( _fd="private.key" ; _fd_pub="public.key" ; \
  2068. openssl rsa -pubout -in ${_fd} -out ${_fd_pub} )
  2069. ```
  2070. ###### Generate private key and CSR
  2071. ```bash
  2072. ( _fd="private.key" ; _fd_csr="request.csr" ; _len="2048" ; \
  2073. openssl req -out ${_fd_csr} -new -newkey rsa:${_len} -nodes -keyout ${_fd} )
  2074. ```
  2075. ###### Generate CSR
  2076. ```bash
  2077. ( _fd="private.key" ; _fd_csr="request.csr" ; \
  2078. openssl req -out ${_fd_csr} -new -key ${_fd} )
  2079. ```
  2080. ###### Generate CSR (metadata from existing certificate)
  2081. > Where `private.key` is the existing private key. As you can see you do not generate this CSR from your certificate (public key). Also you do not generate the "same" CSR, just a new one to request a new certificate.
  2082. ```bash
  2083. ( _fd="private.key" ; _fd_csr="request.csr" ; _fd_crt="cert.crt" ; \
  2084. openssl x509 -x509toreq -in ${_fd_crt} -out ${_fd_csr} -signkey ${_fd} )
  2085. ```
  2086. ###### Generate CSR with -config param
  2087. ```bash
  2088. ( _fd="private.key" ; _fd_csr="request.csr" ; \
  2089. openssl req -new -sha256 -key ${_fd} -out ${_fd_csr} \
  2090. -config <(
  2091. cat << __EOF__
  2092. [req]
  2093. default_bits = 2048
  2094. default_md = sha256
  2095. prompt = no
  2096. distinguished_name = dn
  2097. req_extensions = req_ext
  2098. [ dn ]
  2099. C = "<two-letter ISO abbreviation for your country>"
  2100. ST = "<state or province where your organisation is legally located>"
  2101. L = "<city where your organisation is legally located>"
  2102. O = "<legal name of your organisation>"
  2103. OU = "<section of the organisation>"
  2104. CN = "<fully qualified domain name>"
  2105. [ req_ext ]
  2106. subjectAltName = @alt_names
  2107. [ alt_names ]
  2108. DNS.1 = <fully qualified domain name>
  2109. DNS.2 = <next domain>
  2110. DNS.3 = <next domain>
  2111. __EOF__
  2112. ))
  2113. ```
  2114. Other values in `[ dn ]`:
  2115. ```
  2116. countryName = "DE" # C=
  2117. stateOrProvinceName = "Hessen" # ST=
  2118. localityName = "Keller" # L=
  2119. postalCode = "424242" # L/postalcode=
  2120. postalAddress = "Keller" # L/postaladdress=
  2121. streetAddress = "Crater 1621" # L/street=
  2122. organizationName = "apfelboymschule" # O=
  2123. organizationalUnitName = "IT Department" # OU=
  2124. commonName = "example.com" # CN=
  2125. emailAddress = "webmaster@example.com" # CN/emailAddress=
  2126. ```
  2127. Example of `oids` (you'll probably also have to make OpenSSL know about the new fields required for EV by adding the following under `[new_oids]`):
  2128. ```
  2129. [req]
  2130. ...
  2131. oid_section = new_oids
  2132. [ new_oids ]
  2133. postalCode = 2.5.4.17
  2134. streetAddress = 2.5.4.9
  2135. ```
  2136. Full example:
  2137. ```bash
  2138. ( _fd="private.key" ; _fd_csr="request.csr" ; \
  2139. openssl req -new -sha256 -key ${_fd} -out ${_fd_csr} \
  2140. -config <(
  2141. cat << __EOF__
  2142. [req]
  2143. default_bits = 2048
  2144. default_md = sha256
  2145. prompt = no
  2146. distinguished_name = dn
  2147. req_extensions = req_ext
  2148. oid_section = new_oids
  2149. [ new_oids ]
  2150. serialNumber = 2.5.4.5
  2151. streetAddress = 2.5.4.9
  2152. postalCode = 2.5.4.17
  2153. businessCategory = 2.5.4.15
  2154. [ dn ]
  2155. serialNumber=00001111
  2156. businessCategory=Private Organization
  2157. jurisdictionC=DE
  2158. C=DE
  2159. ST=Hessen
  2160. L=Keller
  2161. postalCode=424242
  2162. streetAddress=Crater 1621
  2163. O=AV Company
  2164. OU=IT
  2165. CN=example.com
  2166. [ req_ext ]
  2167. subjectAltName = @alt_names
  2168. [ alt_names ]
  2169. DNS.1 = example.com
  2170. __EOF__
  2171. ))
  2172. ```
  2173. For more information please look at these great explanations:
  2174. - [RFC 5280](https://tools.ietf.org/html/rfc5280)
  2175. - [How to create multidomain certificates using config files](https://apfelboymchen.net/gnu/notes/openssl%20multidomain%20with%20config%20files.html)
  2176. - [Generate a multi domains certificate using config files](https://gist.github.com/romainnorberg/464758a6620228b977212a3cf20c3e08)
  2177. - [Your OpenSSL CSR command is out of date](https://expeditedsecurity.com/blog/openssl-csr-command/)
  2178. - [OpenSSL example configuration file](https://www.tbs-certificats.com/openssl-dem-server-cert.cnf)
  2179. - [Object Identifiers (OIDs)](https://www.alvestrand.no/objectid/)
  2180. - [openssl objects.txt](https://github.com/openssl/openssl/blob/master/crypto/objects/objects.txt)
  2181. ###### List available EC curves
  2182. ```bash
  2183. openssl ecparam -list_curves
  2184. ```
  2185. ###### Print ECDSA private and public keys
  2186. ```bash
  2187. ( _fd="private.key" ; \
  2188. openssl ec -in ${_fd} -noout -text )
  2189. # For x25519 only extracting public key
  2190. ( _fd="private.key" ; _fd_pub="public.key" ; \
  2191. openssl pkey -in ${_fd} -pubout -out ${_fd_pub} )
  2192. ```
  2193. ###### Generate ECDSA private key
  2194. ```bash
  2195. # _curve: prime256v1, secp521r1, secp384r1
  2196. ( _fd="private.key" ; _curve="prime256v1" ; \
  2197. openssl ecparam -out ${_fd} -name ${_curve} -genkey )
  2198. # _curve: X25519
  2199. ( _fd="private.key" ; _curve="x25519" ; \
  2200. openssl genpkey -algorithm ${_curve} -out ${_fd} )
  2201. ```
  2202. ###### Generate private key and CSR (ECC)
  2203. ```bash
  2204. # _curve: prime256v1, secp521r1, secp384r1
  2205. ( _fd="domain.com.key" ; _fd_csr="domain.com.csr" ; _curve="prime256v1" ; \
  2206. openssl ecparam -out ${_fd} -name ${_curve} -genkey ; \
  2207. openssl req -new -key ${_fd} -out ${_fd_csr} -sha256 )
  2208. ```
  2209. ###### Generate self-signed certificate
  2210. ```bash
  2211. # _len: 2048, 4096
  2212. ( _fd="domain.key" ; _fd_out="domain.crt" ; _len="2048" ; _days="365" ; \
  2213. openssl req -newkey rsa:${_len} -nodes \
  2214. -keyout ${_fd} -x509 -days ${_days} -out ${_fd_out} )
  2215. ```
  2216. ###### Generate self-signed certificate from existing private key
  2217. ```bash
  2218. # _len: 2048, 4096
  2219. ( _fd="domain.key" ; _fd_out="domain.crt" ; _days="365" ; \
  2220. openssl req -key ${_fd} -nodes \
  2221. -x509 -days ${_days} -out ${_fd_out} )
  2222. ```
  2223. ###### Generate self-signed certificate from existing private key and csr
  2224. ```bash
  2225. # _len: 2048, 4096
  2226. ( _fd="domain.key" ; _fd_csr="domain.csr" ; _fd_out="domain.crt" ; _days="365" ; \
  2227. openssl x509 -signkey ${_fd} -nodes \
  2228. -in ${_fd_csr} -req -days ${_days} -out ${_fd_out} )
  2229. ```
  2230. ###### Generate DH public parameters
  2231. ```bash
  2232. ( _dh_size="2048" ; \
  2233. openssl dhparam -out /etc/nginx/ssl/dhparam_${_dh_size}.pem "$_dh_size" )
  2234. ```
  2235. ###### Display DH public parameters
  2236. ```bash
  2237. openssl pkeyparam -in dhparam.pem -text
  2238. ```
  2239. ###### Extract private key from pfx
  2240. ```bash
  2241. ( _fd_pfx="cert.pfx" ; _fd_key="key.pem" ; \
  2242. openssl pkcs12 -in ${_fd_pfx} -nocerts -nodes -out ${_fd_key} )
  2243. ```
  2244. ###### Extract private key and certs from pfx
  2245. ```bash
  2246. ( _fd_pfx="cert.pfx" ; _fd_pem="key_certs.pem" ; \
  2247. openssl pkcs12 -in ${_fd_pfx} -nodes -out ${_fd_pem} )
  2248. ```
  2249. ###### Extract certs from p7b
  2250. ```bash
  2251. # PKCS#7 file doesn't include private keys.
  2252. ( _fd_p7b="cert.p7b" ; _fd_pem="cert.pem" ; \
  2253. openssl pkcs7 -inform DER -outform PEM -in ${_fd_p7b} -print_certs > ${_fd_pem})
  2254. # or:
  2255. openssl pkcs7 -print_certs -in -in ${_fd_p7b} -out ${_fd_pem})
  2256. ```
  2257. ###### Convert DER to PEM
  2258. ```bash
  2259. ( _fd_der="cert.crt" ; _fd_pem="cert.pem" ; \
  2260. openssl x509 -in ${_fd_der} -inform der -outform pem -out ${_fd_pem} )
  2261. ```
  2262. ###### Convert PEM to DER
  2263. ```bash
  2264. ( _fd_der="cert.crt" ; _fd_pem="cert.pem" ; \
  2265. openssl x509 -in ${_fd_pem} -outform der -out ${_fd_der} )
  2266. ```
  2267. ###### Verification of the private key
  2268. ```bash
  2269. ( _fd="private.key" ; \
  2270. openssl rsa -noout -text -in ${_fd} )
  2271. ```
  2272. ###### Verification of the public key
  2273. ```bash
  2274. # 1)
  2275. ( _fd="public.key" ; \
  2276. openssl pkey -noout -text -pubin -in ${_fd} )
  2277. # 2)
  2278. ( _fd="private.key" ; \
  2279. openssl rsa -inform PEM -noout -in ${_fd} &> /dev/null ; \
  2280. if [ $? = 0 ] ; then echo -en "OK\n" ; fi )
  2281. ```
  2282. ###### Verification of the certificate
  2283. ```bash
  2284. ( _fd="certificate.crt" ; # format: pem, cer, crt \
  2285. openssl x509 -noout -text -in ${_fd} )
  2286. ```
  2287. ###### Verification of the CSR
  2288. ```bash
  2289. ( _fd_csr="request.csr" ; \
  2290. openssl req -text -noout -in ${_fd_csr} )
  2291. ```
  2292. ###### Check the private key and the certificate are match
  2293. ```bash
  2294. (openssl rsa -noout -modulus -in private.key | openssl md5 ; \
  2295. openssl x509 -noout -modulus -in certificate.crt | openssl md5) | uniq
  2296. ```
  2297. ###### Check the private key and the CSR are match
  2298. ```bash
  2299. (openssl rsa -noout -modulus -in private.key | openssl md5 ; \
  2300. openssl req -noout -modulus -in request.csr | openssl md5) | uniq
  2301. ```
  2302. ___
  2303. ##### Tool: [secure-delete](https://wiki.archlinux.org/index.php/Securely_wipe_disk)
  2304. ###### Secure delete with shred
  2305. ```bash
  2306. shred -vfuz -n 10 file
  2307. shred --verbose --random-source=/dev/urandom -n 1 /dev/sda
  2308. ```
  2309. ###### Secure delete with scrub
  2310. ```bash
  2311. scrub -p dod /dev/sda
  2312. scrub -p dod -r file
  2313. ```
  2314. ###### Secure delete with badblocks
  2315. ```bash
  2316. badblocks -s -w -t random -v /dev/sda
  2317. badblocks -c 10240 -s -w -t random -v /dev/sda
  2318. ```
  2319. ###### Secure delete with secure-delete
  2320. ```bash
  2321. srm -vz /tmp/file
  2322. sfill -vz /local
  2323. sdmem -v
  2324. swapoff /dev/sda5 && sswap -vz /dev/sda5
  2325. ```
  2326. ___
  2327. ##### Tool: [dd](https://en.wikipedia.org/wiki/Dd_(Unix))
  2328. ###### Show dd status every so often
  2329. ```bash
  2330. dd <dd_params> status=progress
  2331. watch --interval 5 killall -USR1 dd
  2332. ```
  2333. ###### Redirect output to a file with dd
  2334. ```bash
  2335. echo "string" | dd of=filename
  2336. ```
  2337. ___
  2338. ##### Tool: [gpg](https://www.gnupg.org/)
  2339. ###### Export public key
  2340. ```bash
  2341. gpg --export --armor "<username>" > username.pkey
  2342. ```
  2343. * `--export` - export all keys from all keyrings or specific key
  2344. * `-a|--armor` - create ASCII armored output
  2345. ###### Encrypt file
  2346. ```bash
  2347. gpg -e -r "<username>" dump.sql
  2348. ```
  2349. * `-e|--encrypt` - encrypt data
  2350. * `-r|--recipient` - encrypt for specific <username>
  2351. ###### Decrypt file
  2352. ```bash
  2353. gpg -o dump.sql -d dump.sql.gpg
  2354. ```
  2355. * `-o|--output` - use as output file
  2356. * `-d|--decrypt` - decrypt data (default)
  2357. ###### Search recipient
  2358. ```bash
  2359. gpg --keyserver hkp://keyserver.ubuntu.com --search-keys "<username>"
  2360. ```
  2361. * `--keyserver` - set specific key server
  2362. * `--search-keys` - search for keys on a key server
  2363. ###### List all of the packets in an encrypted file
  2364. ```bash
  2365. gpg --batch --list-packets archive.gpg
  2366. gpg2 --batch --list-packets archive.gpg
  2367. ```
  2368. ___
  2369. ##### Tool: [system-other](https://github.com/trimstray/the-book-of-secret-knowledge#tool-system-other)
  2370. ###### Reboot system from init
  2371. ```bash
  2372. exec /sbin/init 6
  2373. ```
  2374. ###### Init system from single user mode
  2375. ```bash
  2376. exec /sbin/init
  2377. ```
  2378. ###### Show current working directory of a process
  2379. ```bash
  2380. readlink -f /proc/<PID>/cwd
  2381. ```
  2382. ###### Show actual pathname of the executed command
  2383. ```bash
  2384. readlink -f /proc/<PID>/exe
  2385. ```
  2386. ##### Tool: [curl](https://curl.haxx.se)
  2387. ```bash
  2388. curl -Iks https://www.google.com
  2389. ```
  2390. * `-I` - show response headers only
  2391. * `-k` - insecure connection when using ssl
  2392. * `-s` - silent mode (not display body)
  2393. ```bash
  2394. curl -Iks --location -X GET -A "x-agent" https://www.google.com
  2395. ```
  2396. * `--location` - follow redirects
  2397. * `-X` - set method
  2398. * `-A` - set user-agent
  2399. ```bash
  2400. curl -Iks --location -X GET -A "x-agent" --proxy http://127.0.0.1:16379 https://www.google.com
  2401. ```
  2402. * `--proxy [socks5://|http://]` - set proxy server
  2403. ```bash
  2404. curl -o file.pdf -C - https://example.com/Aiju2goo0Ja2.pdf
  2405. ```
  2406. * `-o` - write output to file
  2407. * `-C` - resume the transfer
  2408. ###### Find your external IP address (external services)
  2409. ```bash
  2410. curl ipinfo.io
  2411. curl ipinfo.io/ip
  2412. curl icanhazip.com
  2413. curl ifconfig.me/ip ; echo
  2414. ```
  2415. ###### Repeat URL request
  2416. ```bash
  2417. # URL sequence substitution with a dummy query string:
  2418. curl -ks https://example.com/?[1-20]
  2419. # With shell 'for' loop:
  2420. for i in {1..20} ; do curl -ks https://example.com/ ; done
  2421. ```
  2422. ###### Check DNS and HTTP trace with headers for specific domains
  2423. ```bash
  2424. ### Set domains and external dns servers.
  2425. _domain_list=(google.com) ; _dns_list=("8.8.8.8" "1.1.1.1")
  2426. for _domain in "${_domain_list[@]}" ; do
  2427. printf '=%.0s' {1..48}
  2428. echo
  2429. printf "[\\e[1;32m+\\e[m] resolve: %s\\n" "$_domain"
  2430. for _dns in "${_dns_list[@]}" ; do
  2431. # Resolve domain.
  2432. host "${_domain}" "${_dns}"
  2433. echo
  2434. done
  2435. for _proto in http https ; do
  2436. printf "[\\e[1;32m+\\e[m] trace + headers: %s://%s\\n" "$_proto" "$_domain"
  2437. # Get trace and http headers.
  2438. curl -Iks -A "x-agent" --location "${_proto}://${_domain}"
  2439. echo
  2440. done
  2441. done
  2442. unset _domain_list _dns_list
  2443. ```
  2444. ___
  2445. ##### Tool: [httpie](https://httpie.org/)
  2446. ```bash
  2447. http -p Hh https://www.google.com
  2448. ```
  2449. * `-p` - print request and response headers
  2450. * `H` - request headers
  2451. * `B` - request body
  2452. * `h` - response headers
  2453. * `b` - response body
  2454. ```bash
  2455. http -p Hh https://www.google.com --follow --verify no
  2456. ```
  2457. * `-F, --follow` - follow redirects
  2458. * `--verify no` - skip SSL verification
  2459. ```bash
  2460. http -p Hh https://www.google.com --follow --verify no \
  2461. --proxy http:http://127.0.0.1:16379
  2462. ```
  2463. * `--proxy [http:]` - set proxy server
  2464. ##### Tool: [ssh](https://www.openssh.com/)
  2465. ###### Escape Sequence
  2466. ```
  2467. # Supported escape sequences:
  2468. ~. - terminate connection (and any multiplexed sessions)
  2469. ~B - send a BREAK to the remote system
  2470. ~C - open a command line
  2471. ~R - Request rekey (SSH protocol 2 only)
  2472. ~^Z - suspend ssh
  2473. ~# - list forwarded connections
  2474. ~& - background ssh (when waiting for connections to terminate)
  2475. ~? - this message
  2476. ~~ - send the escape character by typing it twice
  2477. ```
  2478. ###### Compare a remote file with a local file
  2479. ```bash
  2480. ssh user@host cat /path/to/remotefile | diff /path/to/localfile -
  2481. ```
  2482. ###### SSH connection through host in the middle
  2483. ```bash
  2484. ssh -t reachable_host ssh unreachable_host
  2485. ```
  2486. ###### Run command over SSH on remote host
  2487. ```bash
  2488. cat > cmd.txt << __EOF__
  2489. cat /etc/hosts
  2490. __EOF__
  2491. ssh host -l user $(<cmd.txt)
  2492. ```
  2493. ###### Get public key from private key
  2494. ```bash
  2495. ssh-keygen -y -f ~/.ssh/id_rsa
  2496. ```
  2497. ###### Get all fingerprints
  2498. ```bash
  2499. ssh-keygen -l -f .ssh/known_hosts
  2500. ```
  2501. ###### SSH authentication with user password
  2502. ```bash
  2503. ssh -o PreferredAuthentications=password -o PubkeyAuthentication=no user@remote_host
  2504. ```
  2505. ###### SSH authentication with publickey
  2506. ```bash
  2507. ssh -o PreferredAuthentications=publickey -o PubkeyAuthentication=yes -i id_rsa user@remote_host
  2508. ```
  2509. ###### Simple recording SSH session
  2510. ```bash
  2511. function _ssh_sesslog() {
  2512. _sesdir="<path/to/session/logs>"
  2513. mkdir -p "${_sesdir}" && \
  2514. ssh $@ 2>&1 | tee -a "${_sesdir}/$(date +%Y%m%d).log"
  2515. }
  2516. # Alias:
  2517. alias ssh='_ssh_sesslog'
  2518. ```
  2519. ###### Using Keychain for SSH logins
  2520. ```bash
  2521. ### Delete all of ssh-agent's keys.
  2522. function _scl() {
  2523. /usr/bin/keychain --clear
  2524. }
  2525. ### Add key to keychain.
  2526. function _scg() {
  2527. /usr/bin/keychain /path/to/private-key
  2528. source "$HOME/.keychain/$HOSTNAME-sh"
  2529. }
  2530. ```
  2531. ###### SSH login without processing any login scripts
  2532. ```bash
  2533. ssh -tt user@host bash
  2534. ```
  2535. ###### SSH local port forwarding
  2536. Example 1:
  2537. ```bash
  2538. # Forwarding our local 2250 port to nmap.org:443 from localhost through localhost
  2539. host1> ssh -L 2250:nmap.org:443 localhost
  2540. # Connect to the service:
  2541. host1> curl -Iks --location -X GET https://localhost:2250
  2542. ```
  2543. Example 2:
  2544. ```bash
  2545. # Forwarding our local 9051 port to db.d.x:5432 from localhost through node.d.y
  2546. host1> ssh -nNT -L 9051:db.d.x:5432 node.d.y
  2547. # Connect to the service:
  2548. host1> psql -U db_user -d db_dev -p 9051 -h localhost
  2549. ```
  2550. * `-n` - redirects stdin from `/dev/null`
  2551. * `-N` - do not execute a remote command
  2552. * `-T` - disable pseudo-terminal allocation
  2553. ###### SSH remote port forwarding
  2554. ```bash
  2555. # Forwarding our local 9051 port to db.d.x:5432 from host2 through node.d.y
  2556. host1> ssh -nNT -R 9051:db.d.x:5432 node.d.y
  2557. # Connect to the service:
  2558. host2> psql -U postgres -d postgres -p 8000 -h localhost
  2559. ```
  2560. ___
  2561. ##### Tool: [linux-dev](https://www.tldp.org/LDP/abs/html/devref1.html)
  2562. ###### Testing remote connection to port
  2563. ```bash
  2564. timeout 1 bash -c "</dev/<proto>/<host>/<port>" >/dev/null 2>&1 ; echo $?
  2565. ```
  2566. * `<proto` - set protocol (tcp/udp)
  2567. * `<host>` - set remote host
  2568. * `<port>` - set destination port
  2569. ###### Read and write to TCP or UDP sockets with common bash tools
  2570. ```bash
  2571. exec 5<>/dev/tcp/<host>/<port>; cat <&5 & cat >&5; exec 5>&-
  2572. ```
  2573. ___
  2574. ##### Tool: [tcpdump](http://www.tcpdump.org/)
  2575. ###### Filter incoming (on interface) traffic (specific <ip:port>)
  2576. ```bash
  2577. tcpdump -ne -i eth0 -Q in host 192.168.252.1 and port 443
  2578. ```
  2579. * `-n` - don't convert addresses (`-nn` will not resolve hostnames or ports)
  2580. * `-e` - print the link-level headers
  2581. * `-i [iface|any]` - set interface
  2582. * `-Q|-D [in|out|inout]` - choose send/receive direction (`-D` - for old tcpdump versions)
  2583. * `host [ip|hostname]` - set host, also `[host not]`
  2584. * `[and|or]` - set logic
  2585. * `port [1-65535]` - set port number, also `[port not]`
  2586. ###### Filter incoming (on interface) traffic (specific <ip:port>) and write to a file
  2587. ```bash
  2588. tcpdump -ne -i eth0 -Q in host 192.168.252.1 and port 443 -c 5 -w tcpdump.pcap
  2589. ```
  2590. * `-c [num]` - capture only num number of packets
  2591. * `-w [filename]` - write packets to file, `-r [filename]` - reading from file
  2592. ###### Capture all ICMP packets
  2593. ```bash
  2594. tcpdump -nei eth0 icmp
  2595. ```
  2596. ###### Check protocol used (TCP or UDP) for service
  2597. ```bash
  2598. tcpdump -nei eth0 tcp port 22 -vv -X | egrep "TCP|UDP"
  2599. ```
  2600. ###### Display ASCII text (to parse the output using grep or other)
  2601. ```bash
  2602. tcpdump -i eth0 -A -s0 port 443
  2603. ```
  2604. ###### Grab everything between two keywords
  2605. ```bash
  2606. tcpdump -i eth0 port 80 -X | sed -n -e '/username/,/=ldap/ p'
  2607. ```
  2608. ###### Grab user and pass ever plain http
  2609. ```bash
  2610. tcpdump -i eth0 port http -l -A | egrep -i \
  2611. 'pass=|pwd=|log=|login=|user=|username=|pw=|passw=|passwd=|password=|pass:|user:|username:|password:|login:|pass |user ' \
  2612. --color=auto --line-buffered -B20
  2613. ```
  2614. ###### Extract HTTP User Agent from HTTP request header
  2615. ```bash
  2616. tcpdump -ei eth0 -nn -A -s1500 -l | grep "User-Agent:"
  2617. ```
  2618. ###### Capture only HTTP GET and POST packets
  2619. ```bash
  2620. tcpdump -ei eth0 -s 0 -A -vv \
  2621. 'tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x47455420' or 'tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x504f5354'
  2622. ```
  2623. or simply:
  2624. ```bash
  2625. tcpdump -ei eth0 -s 0 -v -n -l | egrep -i "POST /|GET /|Host:"
  2626. ```
  2627. ###### Rotate capture files
  2628. ```bash
  2629. tcpdump -ei eth0 -w /tmp/capture-%H.pcap -G 3600 -C 200
  2630. ```
  2631. * `-G <num>` - pcap will be created every `<num>` seconds
  2632. * `-C <size>` - close the current pcap and open a new one if is larger than `<size>`
  2633. ###### Top hosts by packets
  2634. ```bash
  2635. tcpdump -ei enp0s25 -nnn -t -c 200 | cut -f 1,2,3,4 -d '.' | sort | uniq -c | sort -nr | head -n 20
  2636. ```
  2637. ###### Excludes any RFC 1918 private address
  2638. ```bash
  2639. tcpdump -nei eth0 'not (src net (10 or 172.16/12 or 192.168/16) and dst net (10 or 172.16/12 or 192.168/16))'
  2640. ```
  2641. ___
  2642. ##### Tool: [tcpick](http://tcpick.sourceforge.net/)
  2643. ###### Analyse packets in real-time
  2644. ```bash
  2645. while true ; do tcpick -a -C -r dump.pcap ; sleep 2 ; clear ; done
  2646. ```
  2647. ___
  2648. ##### Tool: [ngrep](http://ngrep.sourceforge.net/usage.html)
  2649. ```bash
  2650. ngrep -d eth0 "www.domain.com" port 443
  2651. ```
  2652. * `-d [iface|any]` - set interface
  2653. * `[domain]` - set hostname
  2654. * `port [1-65535]` - set port number
  2655. ```bash
  2656. ngrep -d eth0 "www.domain.com" src host 10.240.20.2 and port 443
  2657. ```
  2658. * `(host [ip|hostname])` - filter by ip or hostname
  2659. * `(port [1-65535])` - filter by port number
  2660. ```bash
  2661. ngrep -d eth0 -qt -O ngrep.pcap "www.domain.com" port 443
  2662. ```
  2663. * `-q` - quiet mode (only payloads)
  2664. * `-t` - added timestamps
  2665. * `-O [filename]` - save output to file, `-I [filename]` - reading from file
  2666. ```bash
  2667. ngrep -d eth0 -qt 'HTTP' 'tcp'
  2668. ```
  2669. * `HTTP` - show http headers
  2670. * `tcp|udp` - set protocol
  2671. * `[src|dst] host [ip|hostname]` - set direction for specific node
  2672. ```bash
  2673. ngrep -l -q -d eth0 -i "User-Agent: curl*"
  2674. ```
  2675. * `-l` - stdout line buffered
  2676. * `-i` - case-insensitive search
  2677. ___
  2678. ##### Tool: [hping3](http://www.hping.org/)
  2679. ```bash
  2680. hping3 -V -p 80 -s 5050 <scan_type> www.google.com
  2681. ```
  2682. * `-V|--verbose` - verbose mode
  2683. * `-p|--destport` - set destination port
  2684. * `-s|--baseport` - set source port
  2685. * `<scan_type>` - set scan type
  2686. * `-F|--fin` - set FIN flag, port open if no reply
  2687. * `-S|--syn` - set SYN flag
  2688. * `-P|--push` - set PUSH flag
  2689. * `-A|--ack` - set ACK flag (use when ping is blocked, RST response back if the port is open)
  2690. * `-U|--urg` - set URG flag
  2691. * `-Y|--ymas` - set Y unused flag (0x80 - nullscan), port open if no reply
  2692. * `-M 0 -UPF` - set TCP sequence number and scan type (URG+PUSH+FIN), port open if no reply
  2693. ```bash
  2694. hping3 -V -c 1 -1 -C 8 www.google.com
  2695. ```
  2696. * `-c [num]` - packet count
  2697. * `-1` - set ICMP mode
  2698. * `-C|--icmptype [icmp-num]` - set icmp type (default icmp-echo = 8)
  2699. ```bash
  2700. hping3 -V -c 1000000 -d 120 -S -w 64 -p 80 --flood --rand-source <remote_host>
  2701. ```
  2702. * `--flood` - sent packets as fast as possible (don't show replies)
  2703. * `--rand-source` - random source address mode
  2704. * `-d --data` - data size
  2705. * `-w|--win` - winsize (default 64)
  2706. ___
  2707. ##### Tool: [nmap](https://nmap.org/)
  2708. ###### Ping scans the network
  2709. ```bash
  2710. nmap -sP 192.168.0.0/24
  2711. ```
  2712. ###### Show only open ports
  2713. ```bash
  2714. nmap -F --open 192.168.0.0/24
  2715. ```
  2716. ###### Full TCP port scan using with service version detection
  2717. ```bash
  2718. nmap -p 1-65535 -sV -sS -T4 192.168.0.0/24
  2719. ```
  2720. ###### Nmap scan and pass output to Nikto
  2721. ```bash
  2722. nmap -p80,443 192.168.0.0/24 -oG - | nikto.pl -h -
  2723. ```
  2724. ###### Recon specific ip:service with Nmap NSE scripts stack
  2725. ```bash
  2726. # Set variables:
  2727. _hosts="192.168.250.10"
  2728. _ports="80,443"
  2729. # Set Nmap NSE scripts stack:
  2730. _nmap_nse_scripts="+dns-brute,\
  2731. +http-auth-finder,\
  2732. +http-chrono,\
  2733. +http-cookie-flags,\
  2734. +http-cors,\
  2735. +http-cross-domain-policy,\
  2736. +http-csrf,\
  2737. +http-dombased-xss,\
  2738. +http-enum,\
  2739. +http-errors,\
  2740. +http-git,\
  2741. +http-grep,\
  2742. +http-internal-ip-disclosure,\
  2743. +http-jsonp-detection,\
  2744. +http-malware-host,\
  2745. +http-methods,\
  2746. +http-passwd,\
  2747. +http-phpself-xss,\
  2748. +http-php-version,\
  2749. +http-robots.txt,\
  2750. +http-sitemap-generator,\
  2751. +http-shellshock,\
  2752. +http-stored-xss,\
  2753. +http-title,\
  2754. +http-unsafe-output-escaping,\
  2755. +http-useragent-tester,\
  2756. +http-vhosts,\
  2757. +http-waf-detect,\
  2758. +http-waf-fingerprint,\
  2759. +http-xssed,\
  2760. +traceroute-geolocation.nse,\
  2761. +ssl-enum-ciphers,\
  2762. +whois-domain,\
  2763. +whois-ip"
  2764. # Set Nmap NSE script params:
  2765. _nmap_nse_scripts_args="dns-brute.domain=${_hosts},http-cross-domain-policy.domain-lookup=true,"
  2766. _nmap_nse_scripts_args+="http-waf-detect.aggro,http-waf-detect.detectBodyChanges,"
  2767. _nmap_nse_scripts_args+="http-waf-fingerprint.intensive=1"
  2768. # Perform scan:
  2769. nmap --script="$_nmap_nse_scripts" --script-args="$_nmap_nse_scripts_args" -p "$_ports" "$_hosts"
  2770. ```
  2771. ___
  2772. ##### Tool: [netcat](http://netcat.sourceforge.net/)
  2773. ```bash
  2774. nc -kl 5000
  2775. ```
  2776. * `-l` - listen for an incoming connection
  2777. * `-k` - listening after client has disconnected
  2778. * `>filename.out` - save receive data to file (optional)
  2779. ```bash
  2780. nc 192.168.0.1 5051 < filename.in
  2781. ```
  2782. * `< filename.in` - send data to remote host
  2783. ```bash
  2784. nc -vz 10.240.30.3 5000
  2785. ```
  2786. * `-v` - verbose output
  2787. * `-z` - scan for listening daemons
  2788. ```bash
  2789. nc -vzu 10.240.30.3 1-65535
  2790. ```
  2791. * `-u` - scan only udp ports
  2792. ###### Transfer data file (archive)
  2793. ```bash
  2794. server> nc -l 5000 | tar xzvfp -
  2795. client> tar czvfp - /path/to/dir | nc 10.240.30.3 5000
  2796. ```
  2797. ###### Launch remote shell
  2798. ```bash
  2799. # 1)
  2800. server> nc -l 5000 -e /bin/bash
  2801. client> nc 10.240.30.3 5000
  2802. # 2)
  2803. server> rm -f /tmp/f; mkfifo /tmp/f
  2804. server> cat /tmp/f | /bin/bash -i 2>&1 | nc -l 127.0.0.1 5000 > /tmp/f
  2805. client> nc 10.240.30.3 5000
  2806. ```
  2807. ###### Simple file server
  2808. ```bash
  2809. while true ; do nc -l 5000 | tar -xvf - ; done
  2810. ```
  2811. ###### Simple minimal HTTP Server
  2812. ```bash
  2813. while true ; do nc -l -p 1500 -c 'echo -e "HTTP/1.1 200 OK\n\n $(date)"' ; done
  2814. ```
  2815. ###### Simple HTTP Server
  2816. > Restarts web server after each request - remove `while` condition for only single connection.
  2817. ```bash
  2818. cat > index.html << __EOF__
  2819. <!doctype html>
  2820. <head>
  2821. <meta charset="utf-8">
  2822. <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
  2823. <title></title>
  2824. <meta name="description" content="">
  2825. <meta name="viewport" content="width=device-width, initial-scale=1">
  2826. </head>
  2827. <body>
  2828. <p>
  2829. Hello! It's a site.
  2830. </p>
  2831. </body>
  2832. </html>
  2833. __EOF__
  2834. ```
  2835. ```bash
  2836. server> while : ; do \
  2837. (echo -ne "HTTP/1.1 200 OK\r\nContent-Length: $(wc -c <index.html)\r\n\r\n" ; cat index.html;) | \
  2838. nc -l -p 5000 \
  2839. ; done
  2840. ```
  2841. * `-p` - port number
  2842. ###### Simple HTTP Proxy (single connection)
  2843. ```bash
  2844. #!/usr/bin/env bash
  2845. if [[ $# != 2 ]] ; then
  2846. printf "%s\\n" \
  2847. "usage: ./nc-proxy listen-port bk_host:bk_port"
  2848. fi
  2849. _listen_port="$1"
  2850. _bk_host=$(echo "$2" | cut -d ":" -f1)
  2851. _bk_port=$(echo "$2" | cut -d ":" -f2)
  2852. printf " lport: %s\\nbk_host: %s\\nbk_port: %s\\n\\n" \
  2853. "$_listen_port" "$_bk_host" "$_bk_port"
  2854. _tmp=$(mktemp -d)
  2855. _back="$_tmp/pipe.back"
  2856. _sent="$_tmp/pipe.sent"
  2857. _recv="$_tmp/pipe.recv"
  2858. trap 'rm -rf "$_tmp"' EXIT
  2859. mkfifo -m 0600 "$_back" "$_sent" "$_recv"
  2860. sed "s/^/=> /" <"$_sent" &
  2861. sed "s/^/<= /" <"$_recv" &
  2862. nc -l -p "$_listen_port" <"$_back" | \
  2863. tee "$_sent" | \
  2864. nc "$_bk_host" "$_bk_port" | \
  2865. tee "$_recv" >"$_back"
  2866. ```
  2867. ```bash
  2868. server> chmod +x nc-proxy && ./nc-proxy 8080 192.168.252.10:8000
  2869. lport: 8080
  2870. bk_host: 192.168.252.10
  2871. bk_port: 8000
  2872. client> http -p h 10.240.30.3:8080
  2873. HTTP/1.1 200 OK
  2874. Accept-Ranges: bytes
  2875. Cache-Control: max-age=31536000
  2876. Content-Length: 2748
  2877. Content-Type: text/html; charset=utf-8
  2878. Date: Sun, 01 Jul 2018 20:12:08 GMT
  2879. Last-Modified: Sun, 01 Apr 2018 21:53:37 GMT
  2880. ```
  2881. ###### Create a single-use TCP or UDP proxy
  2882. ```bash
  2883. ### TCP -> TCP
  2884. nc -l -p 2000 -c "nc [ip|hostname] 3000"
  2885. ### TCP -> UDP
  2886. nc -l -p 2000 -c "nc -u [ip|hostname] 3000"
  2887. ### UDP -> UDP
  2888. nc -l -u -p 2000 -c "nc -u [ip|hostname] 3000"
  2889. ### UDP -> TCP
  2890. nc -l -u -p 2000 -c "nc [ip|hostname] 3000"
  2891. ```
  2892. ___
  2893. ##### Tool: [gnutls-cli](https://gnutls.org/manual/html_node/gnutls_002dcli-Invocation.html)
  2894. ###### Testing connection to remote host (with SNI support)
  2895. ```bash
  2896. gnutls-cli -p 443 google.com
  2897. ```
  2898. ###### Testing connection to remote host (without SNI support)
  2899. ```bash
  2900. gnutls-cli --disable-sni -p 443 google.com
  2901. ```
  2902. ___
  2903. ##### Tool: [socat](http://www.dest-unreach.org/socat/doc/socat.html)
  2904. ###### Testing remote connection to port
  2905. ```bash
  2906. socat - TCP4:10.240.30.3:22
  2907. ```
  2908. * `-` - standard input (STDIO)
  2909. * `TCP4:<params>` - set tcp4 connection with specific params
  2910. * `[hostname|ip]` - set hostname/ip
  2911. * `[1-65535]` - set port number
  2912. ###### Redirecting TCP-traffic to a UNIX domain socket under Linux
  2913. ```bash
  2914. socat TCP-LISTEN:1234,bind=127.0.0.1,reuseaddr,fork,su=nobody,range=127.0.0.0/8 UNIX-CLIENT:/tmp/foo
  2915. ```
  2916. * `TCP-LISTEN:<params>` - set tcp listen with specific params
  2917. * `[1-65535]` - set port number
  2918. * `bind=[hostname|ip]` - set bind hostname/ip
  2919. * `reuseaddr` - allows other sockets to bind to an address
  2920. * `fork` - keeps the parent process attempting to produce more connections
  2921. * `su=nobody` - set user
  2922. * `range=[ip-range]` - ip range
  2923. * `UNIX-CLIENT:<params>` - communicates with the specified peer socket
  2924. * `filename` - define socket
  2925. ___
  2926. ##### Tool: [p0f](http://lcamtuf.coredump.cx/p0f3/)
  2927. ###### Set iface in promiscuous mode and dump traffic to the log file
  2928. ```bash
  2929. p0f -i enp0s25 -p -d -o /dump/enp0s25.log
  2930. ```
  2931. * `-i` - listen on the specified interface
  2932. * `-p` - set interface in promiscuous mode
  2933. * `-d` - fork into background
  2934. * `-o` - output file
  2935. ___
  2936. ##### Tool: [netstat](https://en.wikipedia.org/wiki/Netstat)
  2937. ###### Graph # of connections for each hosts
  2938. ```bash
  2939. netstat -an | awk '/ESTABLISHED/ { split($5,ip,":"); if (ip[1] !~ /^$/) print ip[1] }' | \
  2940. sort | uniq -c | awk '{ printf("%s\t%s\t",$2,$1) ; for (i = 0; i < $1; i++) {printf("*")}; print "" }'
  2941. ```
  2942. ###### Monitor open connections for specific port including listen, count and sort it per IP
  2943. ```bash
  2944. watch "netstat -plan | grep :443 | awk {'print \$5'} | cut -d: -f 1 | sort | uniq -c | sort -nk 1"
  2945. ```
  2946. ###### Grab banners from local IPv4 listening ports
  2947. ```bash
  2948. netstat -nlt | grep 'tcp ' | grep -Eo "[1-9][0-9]*" | xargs -I {} sh -c "echo "" | nc -v -n -w1 127.0.0.1 {}"
  2949. ```
  2950. ___
  2951. ##### Tool: [rsync](https://en.wikipedia.org/wiki/Rsync)
  2952. ###### Rsync remote data as root using sudo
  2953. ```bash
  2954. rsync --rsync-path 'sudo rsync' username@hostname:/path/to/dir/ /local/
  2955. ```
  2956. ___
  2957. ##### Tool: [host](https://en.wikipedia.org/wiki/Host_(Unix))
  2958. ###### Resolves the domain name (using external dns server)
  2959. ```bash
  2960. host google.com 9.9.9.9
  2961. ```
  2962. ###### Checks the domain administrator (SOA record)
  2963. ```bash
  2964. host -t soa google.com 9.9.9.9
  2965. ```
  2966. ___
  2967. ##### Tool: [dig](https://en.wikipedia.org/wiki/Dig_(command))
  2968. ###### Resolves the domain name (short output)
  2969. ```bash
  2970. dig google.com +short
  2971. ```
  2972. ###### Lookup NS record for specific domain
  2973. ```bash
  2974. dig @9.9.9.9 google.com NS
  2975. ```
  2976. ###### Query only answer section
  2977. ```bash
  2978. dig google.com +nocomments +noquestion +noauthority +noadditional +nostats
  2979. ```
  2980. ###### Query ALL DNS Records
  2981. ```bash
  2982. dig google.com ANY +noall +answer
  2983. ```
  2984. ###### DNS Reverse Look-up
  2985. ```bash
  2986. dig -x 172.217.16.14 +short
  2987. ```
  2988. ___
  2989. ##### Tool: [certbot](https://certbot.eff.org/)
  2990. ###### Generate multidomain certificate
  2991. ```bash
  2992. certbot certonly -d example.com -d www.example.com
  2993. ```
  2994. ###### Generate wildcard certificate
  2995. ```bash
  2996. certbot certonly --manual --preferred-challenges=dns -d example.com -d *.example.com
  2997. ```
  2998. ###### Generate certificate with 4096 bit private key
  2999. ```bash
  3000. certbot certonly -d example.com -d www.example.com --rsa-key-size 4096
  3001. ```
  3002. ___
  3003. ##### Tool: [network-other](https://github.com/trimstray/the-book-of-secret-knowledge#tool-network-other)
  3004. ###### Get all subnets for specific AS (Autonomous system)
  3005. ```bash
  3006. AS="AS32934"
  3007. whois -h whois.radb.net -- "-i origin ${AS}" | \
  3008. grep "^route:" | \
  3009. cut -d ":" -f2 | \
  3010. sed -e 's/^[ \t]//' | \
  3011. sort -n -t . -k 1,1 -k 2,2 -k 3,3 -k 4,4 | \
  3012. cut -d ":" -f2 | \
  3013. sed -e 's/^[ \t]/allow /' | \
  3014. sed 's/$/;/' | \
  3015. sed 's/allow */subnet -> /g'
  3016. ```
  3017. ###### Resolves domain name from dns.google.com with curl and jq
  3018. ```bash
  3019. _dname="google.com" ; curl -s "https://dns.google.com/resolve?name=${_dname}&type=A" | jq .
  3020. ```
  3021. ##### Tool: [git](https://git-scm.com/)
  3022. ###### Log alias for a decent view of your repo
  3023. ```bash
  3024. # 1)
  3025. git log --oneline --decorate --graph --all
  3026. # 2)
  3027. git log --graph \
  3028. --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' \
  3029. --abbrev-commit
  3030. ```
  3031. ___
  3032. ##### Tool: [python](https://www.python.org/)
  3033. ###### Static HTTP web server
  3034. ```bash
  3035. # Python 3.x
  3036. python3 -m http.server 8000 --bind 127.0.0.1
  3037. # Python 2.x
  3038. python -m SimpleHTTPServer 8000
  3039. ```
  3040. ###### Static HTTP web server with SSL support
  3041. ```bash
  3042. # Python 3.x
  3043. from http.server import HTTPServer, BaseHTTPRequestHandler
  3044. import ssl
  3045. httpd = HTTPServer(('localhost', 4443), BaseHTTPRequestHandler)
  3046. httpd.socket = ssl.wrap_socket (httpd.socket,
  3047. keyfile="path/to/key.pem",
  3048. certfile='path/to/cert.pem', server_side=True)
  3049. httpd.serve_forever()
  3050. # Python 2.x
  3051. import BaseHTTPServer, SimpleHTTPServer
  3052. import ssl
  3053. httpd = BaseHTTPServer.HTTPServer(('localhost', 4443),
  3054. SimpleHTTPServer.SimpleHTTPRequestHandler)
  3055. httpd.socket = ssl.wrap_socket (httpd.socket,
  3056. keyfile="path/tp/key.pem",
  3057. certfile='path/to/cert.pem', server_side=True)
  3058. httpd.serve_forever()
  3059. ```
  3060. ###### Encode base64
  3061. ```bash
  3062. python -m base64 -e <<< "sample string"
  3063. ```
  3064. ###### Decode base64
  3065. ```bash
  3066. python -m base64 -d <<< "dGhpcyBpcyBlbmNvZGVkCg=="
  3067. ```
  3068. ##### Tool: [awk](http://www.grymoire.com/Unix/Awk.html)
  3069. ###### Search for matching lines
  3070. ```bash
  3071. # egrep foo
  3072. awk '/foo/' filename
  3073. ```
  3074. ###### Search non matching lines
  3075. ```bash
  3076. # egrep -v foo
  3077. awk '!/foo/' filename
  3078. ```
  3079. ###### Print matching lines with numbers
  3080. ```bash
  3081. # egrep -n foo
  3082. awk '/foo/{print FNR,$0}' filename
  3083. ```
  3084. ###### Print the last column
  3085. ```bash
  3086. awk '{print $NF}' filename
  3087. ```
  3088. ###### Find all the lines longer than 80 characters
  3089. ```bash
  3090. awk 'length($0)>80{print FNR,$0}' filename
  3091. ```
  3092. ###### Print only lines of less than 80 characters
  3093. ```bash
  3094. awk 'length < 80' filename
  3095. ```
  3096. ###### Print double new lines a file
  3097. ```bash
  3098. awk '1; { print "" }' filename
  3099. ```
  3100. ###### Print line numbers
  3101. ```bash
  3102. awk '{ print FNR "\t" $0 }' filename
  3103. awk '{ printf("%5d : %s\n", NR, $0) }' filename # in a fancy manner
  3104. ```
  3105. ###### Print line numbers for only non-blank lines
  3106. ```bash
  3107. awk 'NF { $0=++a " :" $0 }; { print }' filename
  3108. ```
  3109. ###### Print the line and the next two (i=5) lines after the line matching regexp
  3110. ```bash
  3111. awk '/foo/{i=5+1;}{if(i){i--; print;}}' filename
  3112. ```
  3113. ###### Print the lines starting at the line matching 'server {' until the line matching '}'
  3114. ```bash
  3115. awk '/server {/,/}/' filename
  3116. ```
  3117. ###### Print multiple columns with separators
  3118. ```bash
  3119. awk -F' ' '{print "ip:\t" $2 "\n port:\t" $3' filename
  3120. ```
  3121. ###### Remove empty lines
  3122. ```bash
  3123. awk 'NF > 0' filename
  3124. # alternative:
  3125. awk NF filename
  3126. ```
  3127. ###### Delete trailing white space (spaces, tabs)
  3128. ```bash
  3129. awk '{sub(/[ \t]*$/, "");print}' filename
  3130. ```
  3131. ###### Delete leading white space
  3132. ```bash
  3133. awk '{sub(/^[ \t]+/, ""); print}' filename
  3134. ```
  3135. ###### Remove duplicate consecutive lines
  3136. ```bash
  3137. # uniq
  3138. awk 'a !~ $0{print}; {a=$0}' filename
  3139. ```
  3140. ###### Remove duplicate entries in a file without sorting
  3141. ```bash
  3142. awk '!x[$0]++' filename
  3143. ```
  3144. ###### Exclude multiple columns
  3145. ```bash
  3146. awk '{$1=$3=""}1' filename
  3147. ```
  3148. ###### Substitute foo for bar on lines matching regexp
  3149. ```bash
  3150. awk '/regexp/{gsub(/foo/, "bar")};{print}' filename
  3151. ```
  3152. ###### Add some characters at the beginning of matching lines
  3153. ```bash
  3154. awk '/regexp/{sub(/^/, "++++"); print;next;}{print}' filename
  3155. ```
  3156. ###### Get the last hour of Apache logs
  3157. ```bash
  3158. awk '/'$(date -d "1 hours ago" "+%d\\/%b\\/%Y:%H:%M")'/,/'$(date "+%d\\/%b\\/%Y:%H:%M")'/ { print $0 }' \
  3159. /var/log/httpd/access_log
  3160. ```
  3161. ___
  3162. ##### Tool: [sed](http://www.grymoire.com/Unix/Sed.html)
  3163. ###### Print a specific line from a file
  3164. ```bash
  3165. sed -n 10p /path/to/file
  3166. ```
  3167. ###### Remove a specific line from a file
  3168. ```bash
  3169. sed -i 10d /path/to/file
  3170. # alternative (BSD): sed -i'' 10d /path/to/file
  3171. ```
  3172. ###### Remove a range of lines from a file
  3173. ```bash
  3174. sed -i <file> -re '<start>,<end>d'
  3175. ```
  3176. ###### Replace newline(s) with a space
  3177. ```bash
  3178. sed ':a;N;$!ba;s/\n/ /g' /path/to/file
  3179. # cross-platform compatible syntax:
  3180. sed -e ':a' -e 'N' -e '$!ba' -e 's/\n/ /g' /path/to/file
  3181. ```
  3182. - `:a` create a label `a`
  3183. - `N` append the next line to the pattern space
  3184. - `$!` if not the last line, ba branch (go to) label `a`
  3185. - `s` substitute, `/\n/` regex for new line, `/ /` by a space, `/g` global match (as many times as it can)
  3186. Alternatives:
  3187. ```bash
  3188. # perl version (sed-like speed):
  3189. perl -p -e 's/\n/ /' /path/to/file
  3190. # bash version (slow):
  3191. while read line ; do printf "%s" "$line " ; done < file
  3192. ```
  3193. ###### Delete string +N next lines
  3194. ```bash
  3195. sed '/start/,+4d' /path/to/file
  3196. ```
  3197. ___
  3198. ##### Tool: [grep](http://www.grymoire.com/Unix/Grep.html)
  3199. ###### Search for a "pattern" inside all files in the current directory
  3200. ```bash
  3201. grep -rn "pattern"
  3202. grep -RnisI "pattern" *
  3203. fgrep "pattern" * -R
  3204. ```
  3205. ###### Show only for multiple patterns
  3206. ```bash
  3207. grep 'INFO*'\''WARN' filename
  3208. grep 'INFO\|WARN' filename
  3209. grep -e INFO -e WARN filename
  3210. grep -E '(INFO|WARN)' filename
  3211. egrep "INFO|WARN" filename
  3212. ```
  3213. ###### Except multiple patterns
  3214. ```bash
  3215. grep -vE '(error|critical|warning)' filename
  3216. ```
  3217. ###### Show data from file without comments
  3218. ```bash
  3219. grep -v ^[[:space:]]*# filename
  3220. ```
  3221. ###### Show data from file without comments and new lines
  3222. ```bash
  3223. egrep -v '#|^$' filename
  3224. ```
  3225. ###### Show strings with a dash/hyphen
  3226. ```bash
  3227. grep -e -- filename
  3228. grep -- -- filename
  3229. grep "\-\-" filename
  3230. ```
  3231. ###### Remove blank lines from a file and save output to new file
  3232. ```bash
  3233. grep . filename > newfilename
  3234. ```
  3235. ##### Tool: [perl](https://www.perl.org/)
  3236. ###### Search and replace (in place)
  3237. ```bash
  3238. perl -i -pe's/SEARCH/REPLACE/' filename
  3239. ```
  3240. ###### Edit of `*.conf` files changing all foo to bar (and backup original)
  3241. ```bash
  3242. perl -p -i.orig -e 's/\bfoo\b/bar/g' *.conf
  3243. ```
  3244. ###### Prints the first 20 lines from `*.conf` files
  3245. ```bash
  3246. perl -pe 'exit if $. > 20' *.conf
  3247. ```
  3248. ###### Search lines 10 to 20
  3249. ```bash
  3250. perl -ne 'print if 10 .. 20' filename
  3251. ```
  3252. ###### Delete first 10 lines (and backup original)
  3253. ```bash
  3254. perl -i.orig -ne 'print unless 1 .. 10' filename
  3255. ```
  3256. ###### Delete all but lines between foo and bar (and backup original)
  3257. ```bash
  3258. perl -i.orig -ne 'print unless /^foo$/ .. /^bar$/' filename
  3259. ```
  3260. ###### Reduce multiple blank lines to a single line
  3261. ```bash
  3262. perl -p -i -00pe0 filename
  3263. ```
  3264. ###### Convert tabs to spaces (1t = 2sp)
  3265. ```bash
  3266. perl -p -i -e 's/\t/ /g' filename
  3267. ```
  3268. ###### Read input from a file and report number of lines and characters
  3269. ```bash
  3270. perl -lne '$i++; $in += length($_); END { print "$i lines, $in characters"; }' filename
  3271. ```
  3272. #### Shell Tricks &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  3273. When you get a shell, it is generally not very clean, but after following these steps, you will have a fairly clean and comfortable shell to work with.
  3274. 1) `script /dev/null -c bash`
  3275. 2) Ctrl-Z (to send it to background)
  3276. 3) `stty raw -echo; fg` (returns the shell to foreground)
  3277. 4) `reset` (to reset terminal)
  3278. 5) `xterm` (when asked for terminal type)
  3279. 6) `export TERM=xterm; export SHELL=bash`
  3280. #### Shell functions &nbsp;[<sup>[TOC]</sup>](#anger-table-of-contents)
  3281. ##### Table of Contents
  3282. - [Domain resolve](#domain-resolve)
  3283. - [Get ASN](#get-asn)
  3284. ###### Domain resolve
  3285. ```bash
  3286. # Dependencies:
  3287. # - curl
  3288. # - jq
  3289. function DomainResolve() {
  3290. local _host="$1"
  3291. local _curl_base="curl --request GET"
  3292. local _timeout="15"
  3293. _host_ip=$($_curl_base -ks -m "$_timeout" "https://dns.google.com/resolve?name=${_host}&type=A" | \
  3294. jq '.Answer[0].data' | tr -d "\"" 2>/dev/null)
  3295. if [[ -z "$_host_ip" ]] || [[ "$_host_ip" == "null" ]] ; then
  3296. echo -en "Unsuccessful domain name resolution.\\n"
  3297. else
  3298. echo -en "$_host > $_host_ip\\n"
  3299. fi
  3300. }
  3301. ```
  3302. Example:
  3303. ```bash
  3304. shell> DomainResolve nmap.org
  3305. nmap.org > 45.33.49.119
  3306. shell> DomainResolve nmap.org
  3307. Unsuccessful domain name resolution.
  3308. ```
  3309. ###### Get ASN
  3310. ```bash
  3311. # Dependencies:
  3312. # - curl
  3313. function GetASN() {
  3314. local _ip="$1"
  3315. local _curl_base="curl --request GET"
  3316. local _timeout="15"
  3317. _asn=$($_curl_base -ks -m "$_timeout" "http://ip-api.com/line/${_ip}?fields=as")
  3318. _state=$(echo $?)
  3319. if [[ -z "$_ip" ]] || [[ "$_ip" == "null" ]] || [[ "$_state" -ne 0 ]]; then
  3320. echo -en "Unsuccessful ASN gathering.\\n"
  3321. else
  3322. echo -en "$_ip > $_asn\\n"
  3323. fi
  3324. }
  3325. ```
  3326. Example:
  3327. ```bash
  3328. shell> GetASN 1.1.1.1
  3329. 1.1.1.1 > AS13335 Cloudflare, Inc.
  3330. shell> GetASN 0.0.0.0
  3331. Unsuccessful ASN gathering.
  3332. ```