You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

README.md 24 KiB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695
  1. <p align="center">
  2. <img src="https://github.com/trimstray/awesome-ninja-admins/blob/master/doc/img/awesome_ninja_admins.png"
  3. alt="Master">
  4. </p>
  5. <br>
  6. <h4 align="center">A collection of awesome lists, manuals, blogs, hacks, one-liners and tools for <b>Awesome Ninja Admins</b>.</h4>
  7. <br>
  8. <p align="center">
  9. <a href="https://github.com/trimstray/awesome-ninja-admins/tree/master">
  10. <img src="https://img.shields.io/badge/Branch-master-green.svg?longCache=true"
  11. alt="Branch">
  12. </a>
  13. <a href="https://awesome.re">
  14. <img src="https://awesome.re/badge.svg"
  15. alt="Awesome">
  16. <a href="https://github.com/trimstray/awesome-ninja-admins">
  17. <img src="https://img.shields.io/badge/Status-Ninja-red.svg?longCache=true"
  18. alt="Status">
  19. </a>
  20. <a href="http://www.gnu.org/licenses/">
  21. <img src="https://img.shields.io/badge/License-GNU-blue.svg?longCache=true"
  22. alt="License">
  23. </a>
  24. </p>
  25. <div align="center">
  26. <sub>Created by
  27. <a href="https://twitter.com/trimstray">trimstray</a> and
  28. <a href="https://github.com/trimstray/awesome-ninja-admins/graphs/contributors">
  29. contributors
  30. </a>
  31. </div>
  32. <br>
  33. ***
  34. ## Who is Ninja Admins?
  35. - race of pure evil who rule the network through a monarchistic feudelic system
  36. - they never opened the door for strangers (or anyone at all)
  37. - they know very nasty piece of code like a fork bombs
  38. - they can make dd is not a disk destroyer
  39. - they know that `#!/usr/bin/env bash` superior to `#!/bin/bash`
  40. - they know that `su -` logs in completely as root
  41. - they love the old admin nix-world
  42. ## Ninja Admins Collection
  43. #### CLI Tools
  44. ##### :black_small_square: Shells
  45. <p>
  46. &nbsp;&nbsp;:small_orange_diamond: <a href="https://ohmyz.sh/"><b>Oh My ZSH!</b></a> - the best framework for managing your Zsh configuration.<br>
  47. &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/Bash-it/bash-it"><b>bash-it</b></a> - a community Bash framework.<br>
  48. </p>
  49. ##### :black_small_square: Managers
  50. <p>
  51. &nbsp;&nbsp;:small_orange_diamond: <a href="https://midnight-commander.org/"><b>Midnight Commander</b></a> - visual file manager, licensed under GNU General Public License.<br>
  52. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.gnu.org/software/screen/"><b>screen</b></a> - full-screen window manager that multiplexes a physical terminal.<br>
  53. &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/tmux/tmux/wiki"><b>tmux</b></a> - terminal multiplexer, lets you switch easily between several programs in one terminal.<br>
  54. </p>
  55. ##### :black_small_square: Network
  56. <p>
  57. &nbsp;&nbsp;:small_orange_diamond: <a href="https://curl.haxx.se/"><b>Curl</b></a> - command line tool and library
  58. for transferring data with URLs.<br>
  59. &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/jkbrzt/httpie"><b>HTTPie</b></a> - a user-friendly HTTP client.<br>
  60. &nbsp;&nbsp;:small_orange_diamond: <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>
  61. &nbsp;&nbsp;:small_orange_diamond: <a href="http://netcat.sourceforge.net/"><b>netcat</b></a> - networking utility which reads and writes data across network connections, using the TCP/IP protocol.<br>
  62. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.tcpdump.org/"><b>tcpdump</b></a> - powerful command-line packet analyzer.<br>
  63. </p>
  64. ##### :black_small_square: Databases
  65. <p>
  66. &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/dbcli/pgcli"><b>pgcli</b></a> - postgres CLI with autocompletion and syntax highlighting.<br>
  67. </p>
  68. #### Web Tools
  69. ##### :black_small_square: SSL
  70. <p>
  71. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.ssllabs.com/ssltest/"><b>SSL Server Test</b></a> - free online service performs a deep analysis of the configuration of any SSL web server.<br>
  72. &nbsp;&nbsp;:small_orange_diamond: <a href="https://dev.ssllabs.com/ssltest/"><b>SSL Server Test (DEV)</b></a> - free online service performs a deep analysis of the configuration of any SSL web server.<br>
  73. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.htbridge.com/ssl/"><b>ImmuniWeb® SSLScan</b></a> - test SSL/TLS (PCI DSS, HIPAA and NIST).<br>
  74. &nbsp;&nbsp;:small_orange_diamond: <a href="https://report-uri.com/home/tools"><b>Report URI</b></a> - monitoring security policies like CSP and HPKP.<br>
  75. &nbsp;&nbsp;:small_orange_diamond: <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>
  76. &nbsp;&nbsp;:small_orange_diamond: <a href="https://ccadb.org/resources"><b>Common CA Database</b></a> - repository of information about CAs, and their root and intermediate certificates.<br>
  77. &nbsp;&nbsp;:small_orange_diamond: <a href="https://certstream.calidog.io/"><b>CERTSTREAM</b></a> - real-time certificate transparency log update stream.<br>
  78. </p>
  79. ##### :black_small_square: HTTP Headers
  80. <p>
  81. &nbsp;&nbsp;:small_orange_diamond: <a href="https://securityheaders.com/"><b>Security Headers</b></a> - analyse the HTTP response headers (with rating system to the results).<br>
  82. &nbsp;&nbsp;:small_orange_diamond: <a href="https://observatory.mozilla.org/"><b>Observatory by Mozilla</b></a> - set of tools to analyze your website.<br>
  83. </p>
  84. ##### :black_small_square: DNS
  85. <p>
  86. &nbsp;&nbsp;:small_orange_diamond: <a href="http://viewdns.info/"><b>ViewDNS</b></a> - one source for free DNS related tools and information.<br>
  87. &nbsp;&nbsp;:small_orange_diamond: <a href="https://dnsspy.io/"><b>DNS Spy</b></a> - monitor, validate and verify your DNS configurations.<br>
  88. &nbsp;&nbsp;:small_orange_diamond: <a href="https://dnslytics.com/"><b>DNSlytics</b></a> - online investigation tool.<br>
  89. </p>
  90. ##### :black_small_square: Mail
  91. <p>
  92. &nbsp;&nbsp;:small_orange_diamond: <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>
  93. </p>
  94. ##### :black_small_square: Mass scanners (search engines)
  95. <p>
  96. &nbsp;&nbsp;:small_orange_diamond: <a href="https://censys.io/"><b>Censys</b></a> - platform that helps information security practitioners discover, monitor, and analyze devices.<br>
  97. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.shodan.io/"><b>Shodan</b></a> - the world's first search engine for Internet-connected devices.<br>
  98. &nbsp;&nbsp;:small_orange_diamond: <a href="https://viz.greynoise.io/table"><b>GreyNoise</b></a> - mass scanner (such as Shodan and Censys).<br>
  99. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.hardenize.com/"><b>Hardenize</b></a> - deploy the security standards.<br>
  100. </p>
  101. ##### :black_small_square: Net-tools
  102. <p>
  103. &nbsp;&nbsp;:small_orange_diamond: <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.<br>
  104. &nbsp;&nbsp;:small_orange_diamond: <a href="https://securitytrails.com/"><b>Security Trails</b></a> - APIs for Security Companies, Researchers and Teams.<br>
  105. &nbsp;&nbsp;:small_orange_diamond: <a href="https://tools.keycdn.com/curl"><b>Online Curl</b></a> - curl test, analyze HTTP Response Headers.<br>
  106. &nbsp;&nbsp;:small_orange_diamond: <a href="http://ping.eu/"><b>Ping.eu</b></a> - online Ping, Traceroute, DNS lookup, WHOIS and others.<br>
  107. &nbsp;&nbsp;:small_orange_diamond: <a href="https://network-tools.com/"><b>Network-Tools</b></a> - network tools for webmasters, IT technicians & geeks.<br>
  108. &nbsp;&nbsp;:small_orange_diamond: <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>
  109. </p>
  110. ##### :black_small_square: Performance
  111. <p>
  112. &nbsp;&nbsp;:small_orange_diamond: <a href="https://gtmetrix.com/"><b>GTmetrix</b></a> - analyze your site’s speed and make it faster.<br>
  113. &nbsp;&nbsp;:small_orange_diamond: <a href="https://performance.sucuri.net/"><b>Sucuri loadtimetester</b></a> - test here the
  114. performance of any of your sites from across the globe.<br>
  115. </p>
  116. ##### :black_small_square: Passwords
  117. <p>
  118. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.random.org/passwords/"><b>Random.org</b></a> - generate random passwords.<br>
  119. &nbsp;&nbsp;:small_orange_diamond: <a href="https://gotcha.pw/"><b>Gotcha?</b></a> - list of 1.4 billion accounts circulates around the Internet.<br>
  120. &nbsp;&nbsp;:small_orange_diamond: <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>
  121. </p>
  122. #### Manuals/Howtos/Tutorials
  123. ##### :black_small_square: Bash
  124. <p>
  125. &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/dylanaraps/pure-bash-bible"><b>pure-bash-bible</b></a> - a collection of pure bash alternatives to external processes.<br>
  126. &nbsp;&nbsp;:small_orange_diamond: <a href="http://wiki.bash-hackers.org/start"><b>The Bash Hackers Wiki</b></a> - hold documentation of any kind about GNU Bash.<br>
  127. </p>
  128. ##### :black_small_square: Unix tutorials
  129. <p>
  130. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.cyberciti.biz/"><b>nixCraft</b></a> - linux and unix tutorials for new and seasoned sysadmin.<br>
  131. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.tecmint.com/"><b>TecMint</b></a> - the ideal Linux blog for Sysadmins & Geeks.<br>
  132. </p>
  133. ##### :black_small_square: Hacking
  134. <p>
  135. &nbsp;&nbsp;:small_orange_diamond: <a href="http://www.hackingarticles.in/"><b>Hacking Articles</b></a> - LRaj Chandel's Security & Hacking Blog.<br>
  136. </p>
  137. #### Blogs
  138. <p>
  139. &nbsp;&nbsp;:small_orange_diamond: <a href="http://www.brendangregg.com/"><b>Brendan Gregg's Blog</b></a> - Brendan Gregg is an industry expert in computing performance and cloud computing.<br>
  140. &nbsp;&nbsp;:small_orange_diamond: <a href="http://gynvael.coldwind.pl/"><b>Gynvael "GynDream" Coldwind</b></a> - Gynvael is a IT security engineer at Google.<br>
  141. &nbsp;&nbsp;:small_orange_diamond: <a href="http://lcamtuf.coredump.cx/"><b>Michał "lcamtuf" Zalewski</b></a> - "white hat" hacker, computer security expert.<br>
  142. &nbsp;&nbsp;:small_orange_diamond: <a href="https://ma.ttias.be/"><b>Mattias Geniar</b></a> - developer, Sysadmin, Blogger, Podcaster and Public Speaker.<br>
  143. &nbsp;&nbsp;:small_orange_diamond: <a href="https://nickcraver.com/"><b>Nick Craver</b></a> - Software Developer and Systems Administrator for Stack Exchange.<br>
  144. &nbsp;&nbsp;:small_orange_diamond: <a href="https://robert.penz.name/"><b>Robert Penz</b></a> - IT security Expert.<br>
  145. &nbsp;&nbsp;:small_orange_diamond: <a href="https://scotthelme.co.uk/"><b>Scott Helme</b></a> - Security Researcher, international speaker and founder of securityheaders.com and report-uri.com.<br>
  146. &nbsp;&nbsp;:small_orange_diamond: <a href="https://security.szurek.pl/"><b>Kacper Szurek</b></a> - Detection Engineer at ESET.<br>
  147. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.troyhunt.com/"><b>Troy Hunt</b></a> - Microsoft Regional Director and Microsoft Most Valuable Professional for Developer Security.<br>
  148. </p>
  149. #### Systems/Services
  150. ##### :black_small_square: Systems
  151. <p>
  152. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.openbsd.org/"><b>OpenBSD</b></a> - multi-platform 4.4BSD-based UNIX-like operating system.<br>
  153. &nbsp;&nbsp;:small_orange_diamond: <a href="https://hardenedbsd.org/"><b>HardenedBSD</b></a> - HardenedBSD aims to implement innovative exploit mitigation and security solutions.<br>
  154. </p>
  155. ##### :black_small_square: HTTP(s) Services
  156. <p>
  157. &nbsp;&nbsp;:small_orange_diamond: <a href="https://varnish-cache.org/"><b>Varnish HTTP Cache</b></a> - HTTP accelerator designed for content-heavy dynamic web sites.<br>
  158. </p>
  159. ##### :black_small_square: Security/hardening
  160. <p>
  161. &nbsp;&nbsp;:small_orange_diamond: <a href="https://emeraldonion.org/"><b>Emerald Onion</b></a> - Seattle-based encrypted-transit internet service provider.<br>
  162. </p>
  163. #### Lists
  164. <p>
  165. &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/kahun/awesome-sysadmin"><b>Awesome Sysadmin</b></a> - amazingly awesome open source sysadmin resources.<br>
  166. &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/alebcay/awesome-shell"><b>Awesome Shell</b></a> - awesome command-line frameworks, toolkits, guides and gizmos.<br>
  167. &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/Hack-with-Github/Awesome-Hacking"><b>Awesome-Hacking</b></a> - awesome lists for hackers, pentesters and security researchers.<br>
  168. </p>
  169. #### Hacking/Penetration testing
  170. ##### :black_small_square: Bounty programs
  171. <p>
  172. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.openbugbounty.org/"><b>Openbugbounty</b></a> - allows any security researcher reporting a vulnerability on any website.<br>
  173. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.hackerone.com/"><b>hackerone</b></a> - global hacker community to surface the most relevant security issues.<br>
  174. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.bugcrowd.com/"><b>bugcrowd</b></a> - crowdsourced cybersecurity for the enterprise.<br>
  175. &nbsp;&nbsp;:small_orange_diamond: <a href="https://crowdshield.com/"><b>Crowdshield</b></a> - crowdsourced Security & Bug Bounty Management.<br>
  176. </p>
  177. ##### :black_small_square: Web Training Apps
  178. <p>
  179. &nbsp;&nbsp;:small_orange_diamond: <a href="http://www.dvwa.co.uk/"><b>DVWA</b></a> - PHP/MySQL web application that is damn vulnerable.<br>
  180. &nbsp;&nbsp;:small_orange_diamond: <a href="https://sourceforge.net/projects/mutillidae/"><b>OWASP Mutillidae II</b></a> - free, open source, deliberately vulnerable web-application.<br>
  181. &nbsp;&nbsp;:small_orange_diamond: <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>
  182. &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.owasp.org/index.php/Category:OWASP_WebGoat_Project"><b>OWASP WebGoat Project</b></a> - insecure web application maintained by OWASP designed to teach web app security.<br>
  183. &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/opendns/Security_Ninjas_AppSec_Training"><b>Security Ninjas</b></a> - open source application security training program.<br>
  184. </p>
  185. #### One-liners
  186. ##### Table of Contents
  187. - **[System](#system)**
  188. * [terminal](#tool-terminal)
  189. * [mount](#tool-mount)
  190. * [fuser](#tool-fuser)
  191. - **[HTTP/HTTPS](#http-https)**
  192. * [curl](#tool-curl)
  193. * [httpie](#tool-httpie)
  194. - **[Network](#network)**
  195. * [openssh](#tool-openssh)
  196. * [linux-dev](#tool-linux-dev)
  197. * [tcpdump](#tool-tcpdump)
  198. * [ngrep](#tool-ngrep)
  199. * [hping3](#tool-hping3)
  200. * [netcat](#tool-netcat)
  201. * [socat](#tool-socat)
  202. * [lsof](#tool-lsof)
  203. * [netstat](#tool-nestat)
  204. - **[Programming](#programming)**
  205. * [awk](#tool-awk)
  206. <a name="system"><b>System</b></a>
  207. ##### Tool: [terminal](https://curl.haxx.se)
  208. ###### Close shell keeping all subprocess running
  209. ```bash
  210. disown -a && exit
  211. ```
  212. ###### Drop shell history
  213. ```bash
  214. kill -9 $$
  215. ```
  216. ###### List of commands you use most often
  217. ```bash
  218. history | awk '{ a[$2]++ } END { for(i in a) { print a[i] " " i } }' | sort -rn | head
  219. ```
  220. ###### Quickly backup a file
  221. ```bash
  222. cp filename{,.orig}
  223. ```
  224. ###### Delete all files in a folder that don't match a certain file extension
  225. ```bash
  226. rm !(*.foo|*.bar|*.baz)
  227. ```
  228. ###### Edit a file on a remote host using vim
  229. ```bash
  230. vim scp://user@host//etc/fstab
  231. ```
  232. ___
  233. ##### Tool: [mount](https://curl.haxx.se)
  234. ###### Mount a temporary ram partition
  235. ```bash
  236. mount -t tmpfs tmpfs /mnt -o size=64M
  237. ```
  238. * `-t` - filesystem type
  239. * `-o` - mount options
  240. ___
  241. ##### Tool: [fuser](https://curl.haxx.se)
  242. ###### Kills a process that is locking a file
  243. ```bash
  244. fuser -k filename
  245. ```
  246. <a name="http-https"><b>HTTP/HTTPS</b></a>
  247. ##### Tool: [curl](https://curl.haxx.se)
  248. ```bash
  249. curl -Iks https://www.google.com
  250. ```
  251. * `-I` - show response headers only
  252. * `-k` - insecure connection when using ssl
  253. * `-s` - silent mode (not display body)
  254. ```bash
  255. curl -Iks --location -X GET -A "x-agent" https://www.google.com
  256. ```
  257. * `--location` - follow redirects
  258. * `-X` - set method
  259. * `-A` - set user-agent
  260. ```bash
  261. curl -Iks --location -X GET -A "x-agent" --proxy http://127.0.0.1:16379 https://www.google.com
  262. ```
  263. * `--proxy [socks5://|http://]` - set proxy server
  264. ___
  265. ##### Tool: [httpie](https://httpie.org/)
  266. ```bash
  267. http -p Hh https://www.google.com
  268. ```
  269. * `-p` - print request and response headers
  270. * `H` - request headers
  271. * `B` - request body
  272. * `h` - response headers
  273. * `b` - response body
  274. ```bash
  275. http -p Hh --follow --max-redirects 5 --verify no https://www.google.com
  276. ```
  277. * `-F, --follow` - follow redirects
  278. * `--max-redirects N` - maximum for `--follow`
  279. * `--verify no` - skip SSL verification
  280. ```bash
  281. http -p Hh --follow --max-redirects 5 --verify no --proxy http:http://127.0.0.1:16379 https://www.google.com
  282. ```
  283. * `--proxy [http:]` - set proxy server
  284. <a name="network"><b>Network</b></a>
  285. ##### Tool: [openssh](https://www.openssh.com/)
  286. ###### Compare a remote file with a local file
  287. ```bash
  288. ssh user@host cat /path/to/remotefile | diff /path/to/localfile -
  289. ```
  290. ###### SSH connection through host in the middle
  291. ```bash
  292. ssh -t reachable_host ssh unreachable_host
  293. ```
  294. ___
  295. ##### Tool: [linux-dev](https://www.tldp.org/LDP/abs/html/devref1.html)
  296. ###### Testing remote connection to port
  297. ```bash
  298. timeout 1 bash -c "</dev/tcp/<host>/<port>" >/dev/null 2>&1 ; echo $?
  299. ```
  300. * `<host>` - set remote host
  301. * `<port>` - set destination port
  302. ___
  303. ##### Tool: [tcpdump](http://www.tcpdump.org/)
  304. ```bash
  305. tcpdump -ne -i eth0 -Q in host 192.168.252.1 and port 443
  306. ```
  307. * `-n` - don't convert addresses
  308. * `-e` - print the link-level headers
  309. * `-i [iface]` - set interface
  310. * `-Q|-D [in|out|inout]` - choose send/receive direction (`-D` - for old tcpdump versions)
  311. * `host [ip|hostname]` - set host, also `[host not]`
  312. * `[and|or]` - set logic
  313. * `port [1-65535]` - set port number, also `[port not]`
  314. ```bash
  315. tcpdump -ne -i eth0 -Q in host 192.168.252.1 and port 443 -c 5 -w tcpdump.pcap
  316. ```
  317. * `-c [num]` - capture only num number of packets
  318. * `-w [filename]` - write packets to file, `-r [filename]` - reading from file
  319. ___
  320. ##### Tool: [ngrep](http://ngrep.sourceforge.net/usage.html)
  321. ```bash
  322. ngrep -d eth0 "www.google.com" port 443
  323. ```
  324. * `-d [iface|any]` - set interface
  325. * `[domain]` - set hostname
  326. * `port [1-65535]` - set port number
  327. ```bash
  328. ngrep -d eth0 "www.google.com" (host 10.240.20.2) and (port 443)
  329. ```
  330. * `(host [ip|hostname])` - filter by ip or hostname
  331. * `(port [1-65535])` - filter by port number
  332. ```bash
  333. ngrep -d eth0 -qt -O ngrep.pcap "www.google.com" port 443
  334. ```
  335. * `-q` - quiet mode (only payloads)
  336. * `-t` - added timestamps
  337. * `-O [filename]` - save output to file, `-I [filename]` - reading from file
  338. ```bash
  339. ngrep -d eth0 -qt 'HTTP' 'tcp'
  340. ```
  341. * `HTTP` - show http headers
  342. * `tcp|udp` - set protocol
  343. * `[src|dst] host [ip|hostname]` - set direction for specific node
  344. ___
  345. ##### Tool: [hping3](http://www.hping.org/)
  346. ```bash
  347. hping3 -V -p 80 -s 5050 <scan_type> www.google.com
  348. ```
  349. * `-V|--verbose` - verbose mode
  350. * `-p|--destport` - set destination port
  351. * `-s|--baseport` - set source port
  352. * `<scan_type>` - set scan type
  353. * `-F|--fin` - set FIN flag, port open if no reply
  354. * `-S|--syn` - set SYN flag
  355. * `-P|--push` - set PUSH flag
  356. * `-A|--ack` - set ACK flag (use when ping is blocked, RST response back if the port is open)
  357. * `-U|--urg` - set URG flag
  358. * `-Y|--ymas` - set Y unused flag (0x80 - nullscan), port open if no reply
  359. * `-M 0 -UPF` - set TCP sequence number and scan type (URG+PUSH+FIN), port open if no reply
  360. ```bash
  361. hping3 -V -c 1 -1 -C 8 www.google.com
  362. ```
  363. * `-c [num]` - packet count
  364. * `-1` - set ICMP mode
  365. * `-C|--icmptype [icmp-num]` - set icmp type (default icmp-echo = 8)
  366. ```bash
  367. hping3 -V -c 1000000 -d 120 -S -w 64 -p 80 --flood --rand-source <remote_host>
  368. ```
  369. * `--flood` - sent packets as fast as possible (don't show replies)
  370. * `--rand-source` - random source address mode
  371. * `-d --data` - data size
  372. * `-w|--win` - winsize (default 64)
  373. ___
  374. ##### Tool: [netcat](http://netcat.sourceforge.net/)
  375. ```bash
  376. nc -kl 5000
  377. ```
  378. * `-l` - listen for an incoming connection
  379. * `-k` - listening after client has disconnected
  380. * `>filename.out` - save receive data to file (optional)
  381. ```bash
  382. nc 192.168.0.1 5051 < filename.in
  383. ```
  384. * `< filename.in` - send data to remote host
  385. ```bash
  386. nc -vz 10.240.30.3 5000
  387. ```
  388. * `-v` - verbose output
  389. * `-z` - scan for listening daemons
  390. ```bash
  391. nc -vzu 10.240.30.3 1-65535
  392. ```
  393. * `-u` - scan only udp ports
  394. ###### Transfer data file (archive)
  395. ```bash
  396. server> nc -l 5000 | tar xzvfp -
  397. client> tar czvfp - /path/to/dir | nc 10.240.30.3 5000
  398. ```
  399. ###### Launch remote shell
  400. ```bash
  401. server> nc -l 5000 -e /bin/bash
  402. client> nc 10.240.30.3 5000
  403. ```
  404. ###### Simple HTTP Server
  405. > Restarts web server after each request - remove `while` condition for only single connection.
  406. ```bash
  407. cat > index.html << __EOF__
  408. <!doctype html>
  409. <head>
  410. <meta charset="utf-8">
  411. <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
  412. <title></title>
  413. <meta name="description" content="">
  414. <meta name="viewport" content="width=device-width, initial-scale=1">
  415. </head>
  416. <body>
  417. <p>
  418. Hello! It's a site.
  419. </p>
  420. </body>
  421. </html>
  422. __EOF__
  423. ```
  424. ```bash
  425. server> while : ; do \
  426. (echo -ne "HTTP/1.1 200 OK\r\nContent-Length: $(wc -c <index.html)\r\n\r\n" ; cat index.html;) \
  427. | nc -l -p 5000 \
  428. ; done
  429. ```
  430. * `-p` - port number
  431. ###### Simple HTTP Proxy (single connection)
  432. ```bash
  433. #!/usr/bin/env bash
  434. if [[ $# != 2 ]] ; then
  435. printf "%s\\n" \
  436. "usage: ./nc-proxy listen-port bk_host:bk_port"
  437. fi
  438. _listen_port="$1"
  439. _bk_host=$(echo "$2" | cut -d ":" -f1)
  440. _bk_port=$(echo "$2" | cut -d ":" -f2)
  441. printf " lport: %s\\nbk_host: %s\\nbk_port: %s\\n\\n" \
  442. "$_listen_port" "$_bk_host" "$_bk_port"
  443. _tmp=$(mktemp -d)
  444. _back="$_tmp/pipe.back"
  445. _sent="$_tmp/pipe.sent"
  446. _recv="$_tmp/pipe.recv"
  447. trap 'rm -rf "$_tmp"' EXIT
  448. mkfifo -m 0600 "$_back" "$_sent" "$_recv"
  449. sed "s/^/=> /" <"$_sent" &
  450. sed "s/^/<= /" <"$_recv" &
  451. nc -l -p "$_listen_port" <"$_back" \
  452. | tee "$_sent" \
  453. | nc "$_bk_host" "$_bk_port" \
  454. | tee "$_recv" >"$_back"
  455. ```
  456. ```bash
  457. server> chmod +x nc-proxy && ./nc-proxy 8080 192.168.252.10:8000
  458. lport: 8080
  459. bk_host: 192.168.252.10
  460. bk_port: 8000
  461. client> http -p h 10.240.30.3:8080
  462. HTTP/1.1 200 OK
  463. Accept-Ranges: bytes
  464. Cache-Control: max-age=31536000
  465. Content-Length: 2748
  466. Content-Type: text/html; charset=utf-8
  467. Date: Sun, 01 Jul 2018 20:12:08 GMT
  468. Last-Modified: Sun, 01 Apr 2018 21:53:37 GMT
  469. ```
  470. ___
  471. ##### Tool: [socat](http://www.dest-unreach.org/socat/doc/socat.html/)
  472. ###### Testing remote connection to port
  473. ```bash
  474. socat - TCP4:10.240.30.3:22
  475. ```
  476. * `-` - standard input (STDIO)
  477. * `TCP4:<params>` - set tcp4 connection with specific params
  478. * `[hostname|ip]` - set hostname/ip
  479. * `[1-65535]` - set port number
  480. ###### Redirecting TCP-traffic to a UNIX domain socket under Linux
  481. ```bash
  482. socat TCP-LISTEN:1234,bind=127.0.0.1,reuseaddr,fork,su=nobody,range=127.0.0.0/8 UNIX-CLIENT:/tmp/foo
  483. ```
  484. * `TCP-LISTEN:<params>` - set tcp listen with specific params
  485. * `[1-65535]` - set port number
  486. * `bind=[hostname|ip]` - set bind hostname/ip
  487. * `reuseaddr` -
  488. * `fork` -
  489. * `su=nobody` -
  490. * `range=[ip-range]` -
  491. * `UNIX-CLIENT:<params>`
  492. * `filename` -
  493. ##### Tool: [lsof](http://www.dest-unreach.org/socat/doc/socat.html/)
  494. ###### Show process that use internet connection at the moment
  495. ```bash
  496. lsof -P -i -n
  497. ```
  498. **Tool: [netstat](http://www.dest-unreach.org/socat/doc/socat.html/)**
  499. ###### Graph # of connections for each hosts
  500. ```bash
  501. netstat -an | grep ESTABLISHED | awk '{print $5}' | awk -F: '{print $1}' | grep -v -e '^[[:space:]]*$' | sort | uniq -c | awk '{ printf("%s\t%s\t",$2,$1) ; for (i = 0; i < $1; i++) {printf("*")}; print "" }'
  502. ```
  503. <a name="programming"><b>Programming</b></a>
  504. ##### Tool: [awk](https://curl.haxx.se)
  505. ###### Remove duplicate entries in a file without sorting
  506. ```bash
  507. awk '!x[$0]++' filename
  508. ```