added one-liners

- signed-off-by: trimstray <trimstray@gmail.com>
6 years ago · 8b240aecfc
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@

 <br>

 <h4 align="center">A collection of awesome lists, manuals, blogs, hacks and tools for <b>Awesome Ninja Admins</b>.</h4>
 <h4 align="center">A collection of awesome lists, manuals, blogs, hacks, one-liners and tools for <b>Awesome Ninja Admins</b>.</h4>

 <br>

@@ -213,13 +213,6 @@ performance of any of your sites from across the globe.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://emeraldonion.org/"><b>Emerald Onion</b></a> - Seattle-based encrypted-transit internet service provider.<br>
 </p>

 #### One-liners

 <p>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.commandlinefu.com/commands/browse"><b>commandlinefu.com</b></a> - command line diamonds, created and voted on by our members.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="http://www.bashoneliners.com/"><b>Bash One-Liners</b></a> - practical, well-explained Bash one-liners, and promote best practices in Bash shell scripting.<br>
 </p>

 #### Lists

 <p>
@@ -248,3 +241,455 @@ performance of any of your sites from across the globe.<br>
 &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>
 &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>
 </p>

 #### One-liners

 ##### Table of Contents

 - **[System](#system)**
  * [terminal](#tool-terminal)
  * [mount](#tool-mount)
  * [fuser](#tool-fuser)
 - **[HTTP/HTTPS](#http-https)**
  * [curl](#tool-curl)
  * [httpie](#tool-httpie)
 - **[Network](#network)**
  * [openssh](#tool-openssh)
  * [linux-dev](#tool-linux-dev)
  * [tcpdump](#tool-tcpdump)
  * [ngrep](#tool-ngrep)
  * [hping3](#tool-hping3)
  * [netcat](#tool-netcat)
  * [socat](#tool-socat)
  * [lsof](#tool-lsof)
  * [netstat](#tool-nestat)
 - **[Programming](#programming)**
  * [awk](#tool-awk)

 <a name="system"><b>System</b></a>

 ##### Tool: [terminal](https://curl.haxx.se)

 ###### Close shell keeping all subprocess running

 ```bash
 disown -a && exit
 ```

 ###### Drop shell history

 ```bash
 kill -9 $$
 ```

 ###### List of commands you use most often

 ```bash
 history | awk '{ a[$2]++ } END { for(i in a) { print a[i] " " i } }' | sort -rn | head
 ```

 ###### Quickly backup a file

 ```bash
 cp filename{,.orig}
 ```

 ###### Delete all files in a folder that don't match a certain file extension

 ```bash
 rm !(*.foo|*.bar|*.baz)
 ```

 ###### Edit a file on a remote host using vim

 ```bash
 vim scp://user@host//etc/fstab
 ```
 ___

 ##### Tool: [mount](https://curl.haxx.se)

 ###### Mount a temporary ram partition

 ```bash
 mount -t tmpfs tmpfs /mnt -o size=64M
 ```

  * `-t` - filesystem type
  * `-o` - mount options

 ___

 ##### Tool: [fuser](https://curl.haxx.se)

 ###### Kills a process that is locking a file

 ```bash
 fuser -k filename
 ```

 <a name="http-https"><b>HTTP/HTTPS</b></a>

 ##### Tool: [curl](https://curl.haxx.se)

 ```bash
 curl -Iks https://www.google.com
 ```

  * `-I` - show response headers only
  * `-k` - insecure connection when using ssl
  * `-s` - silent mode (not display body)

 ```bash
 curl -Iks --location -X GET -A "x-agent" https://www.google.com
 ```

  * `--location` - follow redirects
  * `-X` - set method
  * `-A` - set user-agent

 ```bash
 curl -Iks --location -X GET -A "x-agent" --proxy http://127.0.0.1:16379 https://www.google.com
 ```

  * `--proxy [socks5://|http://]` - set proxy server

 ___

 ##### Tool: [httpie](https://httpie.org/)

 ```bash
 http -p Hh https://www.google.com
 ```

  * `-p` - print request and response headers
    * `H` - request headers
    * `B` - request body
    * `h` - response headers
    * `b` - response body

 ```bash
 http -p Hh --follow --max-redirects 5 --verify no https://www.google.com
 ```

  * `-F, --follow` - follow redirects
  * `--max-redirects N` - maximum for `--follow`
  * `--verify no` - skip SSL verification

 ```bash
 http -p Hh --follow --max-redirects 5 --verify no --proxy http:http://127.0.0.1:16379 https://www.google.com
 ```

  * `--proxy [http:]` - set proxy server

 <a name="network"><b>Network</b></a>

 ##### Tool: [openssh](https://www.openssh.com/)

 ###### Compare a remote file with a local file

 ```bash
 ssh user@host cat /path/to/remotefile | diff /path/to/localfile -
 ```

 ###### SSH connection through host in the middle

 ```bash
 ssh -t reachable_host ssh unreachable_host
 ```

 ___

 ##### Tool: [linux-dev](https://www.tldp.org/LDP/abs/html/devref1.html)

 ###### Testing remote connection to port

 ```bash
 timeout 1 bash -c "</dev/tcp/<host>/<port>" >/dev/null 2>&1 ; echo $?
 ```

  * `<host>` - set remote host
  * `<port>` - set destination port

 ___

 ##### Tool: [tcpdump](http://www.tcpdump.org/)

 ```bash
 tcpdump -ne -i eth0 -Q in host 192.168.252.1 and port 443
 ```

  * `-n` - don't convert addresses
  * `-e` - print the link-level headers
  * `-i [iface]` - set interface
  * `-Q|-D [in|out|inout]` - choose send/receive direction (`-D` - for old tcpdump versions)
  * `host [ip|hostname]` - set host, also `[host not]`
  * `[and|or]` - set logic
  * `port [1-65535]` - set port number, also `[port not]`

 ```bash
 tcpdump -ne -i eth0 -Q in host 192.168.252.1 and port 443 -c 5 -w tcpdump.pcap
 ```

  * `-c [num]` - capture only num number of packets
  * `-w [filename]` - write packets to file, `-r [filename]` - reading from file

 ___

 ##### Tool: [ngrep](http://ngrep.sourceforge.net/usage.html)

 ```bash
 ngrep -d eth0 "www.google.com" port 443
 ```

  * `-d [iface|any]` - set interface
  * `[domain]` - set hostname
  * `port [1-65535]` - set port number

 ```bash
 ngrep -d eth0 "www.google.com" (host 10.240.20.2) and (port 443)
 ```

  * `(host [ip|hostname])` - filter by ip or hostname
  * `(port [1-65535])` - filter by port number

 ```bash
 ngrep -d eth0 -qt -O ngrep.pcap "www.google.com" port 443
 ```

  * `-q` - quiet mode (only payloads)
  * `-t` - added timestamps
  * `-O [filename]` - save output to file, `-I [filename]` - reading from file

 ```bash
 ngrep -d eth0 -qt 'HTTP' 'tcp'
 ```

  * `HTTP` - show http headers
  * `tcp|udp` - set protocol
  * `[src|dst] host [ip|hostname]` - set direction for specific node

 ___

 ##### Tool: [hping3](http://www.hping.org/)

 ```bash
 hping3 -V -p 80 -s 5050 <scan_type> www.google.com
 ```

  * `-V|--verbose` - verbose mode
  * `-p|--destport` - set destination port
  * `-s|--baseport` - set source port
  * `<scan_type>` - set scan type
    * `-F|--fin` - set FIN flag, port open if no reply
    * `-S|--syn` - set SYN flag
    * `-P|--push` - set PUSH flag
    * `-A|--ack` - set ACK flag (use when ping is blocked, RST response back if the port is open)
    * `-U|--urg` - set URG flag
    * `-Y|--ymas` - set Y unused flag (0x80 - nullscan), port open if no reply
    * `-M 0 -UPF` - set TCP sequence number and scan type (URG+PUSH+FIN), port open if no reply

 ```bash
 hping3 -V -c 1 -1 -C 8 www.google.com
 ```

  * `-c [num]` - packet count
  * `-1` - set ICMP mode
  * `-C|--icmptype [icmp-num]` - set icmp type (default icmp-echo = 8)

 ```bash
 hping3 -V -c 1000000 -d 120 -S -w 64 -p 80 --flood --rand-source <remote_host>
 ```

  * `--flood` - sent packets as fast as possible (don't show replies)
  * `--rand-source` - random source address mode
  * `-d --data` - data size
  * `-w|--win` - winsize (default 64)

 ___

 ##### Tool: [netcat](http://netcat.sourceforge.net/)

 ```bash
 nc -kl 5000
 ```

  * `-l` - listen for an incoming connection
  * `-k` - listening after client has disconnected
  * `>filename.out` - save receive data to file (optional)

 ```bash
 nc 192.168.0.1 5051 < filename.in
 ```

  * `< filename.in` - send data to remote host

 ```bash
 nc -vz 10.240.30.3 5000
 ```

  * `-v` - verbose output
  * `-z` - scan for listening daemons

 ```bash
 nc -vzu 10.240.30.3 1-65535
 ```

  * `-u` - scan only udp ports

 ###### Transfer data file (archive)

 ```bash
 server> nc -l 5000 | tar xzvfp -
 client> tar czvfp - /path/to/dir | nc 10.240.30.3 5000
 ```

 ###### Launch remote shell

 ```bash
 server> nc -l 5000 -e /bin/bash
 client> nc 10.240.30.3 5000
 ```

 ###### Simple HTTP Server

  > Restarts web server after each request - remove `while` condition for only single connection.

 ```bash
 cat > index.html << __EOF__
 <!doctype html>
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
        <title></title>
        <meta name="description" content="">
        <meta name="viewport" content="width=device-width, initial-scale=1">
    </head>
    <body>

    <p>

      Hello! It's a site.

    </p>

    </body>
 </html>
 __EOF__
 ```

 ```bash
 server> while : ; do \
 (echo -ne "HTTP/1.1 200 OK\r\nContent-Length: $(wc -c <index.html)\r\n\r\n" ; cat index.html;) \
 | nc -l -p 5000 \
 ; done
 ```

  * `-p` - port number

 ###### Simple HTTP Proxy (single connection)

 ```bash
 #!/usr/bin/env bash

 if [[ $# != 2 ]] ; then
  printf "%s\\n" \
         "usage: ./nc-proxy listen-port bk_host:bk_port"
 fi

 _listen_port="$1"
 _bk_host=$(echo "$2" | cut -d ":" -f1)
 _bk_port=$(echo "$2" | cut -d ":" -f2)

 printf "  lport: %s\\nbk_host: %s\\nbk_port: %s\\n\\n" \
       "$_listen_port" "$_bk_host" "$_bk_port"

 _tmp=$(mktemp -d)
 _back="$_tmp/pipe.back"
 _sent="$_tmp/pipe.sent"
 _recv="$_tmp/pipe.recv"

 trap 'rm -rf "$_tmp"' EXIT

 mkfifo -m 0600 "$_back" "$_sent" "$_recv"

 sed "s/^/=> /" <"$_sent" &
 sed "s/^/<=  /" <"$_recv" &
 nc -l -p "$_listen_port" <"$_back" \
  | tee "$_sent" \
  | nc "$_bk_host" "$_bk_port" \
  | tee "$_recv" >"$_back"
 ```

 ```bash
 server> chmod +x nc-proxy && ./nc-proxy 8080 192.168.252.10:8000
  lport: 8080
 bk_host: 192.168.252.10
 bk_port: 8000

 client> http -p h 10.240.30.3:8080
 HTTP/1.1 200 OK
 Accept-Ranges: bytes
 Cache-Control: max-age=31536000
 Content-Length: 2748
 Content-Type: text/html; charset=utf-8
 Date: Sun, 01 Jul 2018 20:12:08 GMT
 Last-Modified: Sun, 01 Apr 2018 21:53:37 GMT
 ```

 ___

 ##### Tool: [socat](http://www.dest-unreach.org/socat/doc/socat.html/)

 ###### Testing remote connection to port

 ```bash
 socat - TCP4:10.240.30.3:22
 ```

  * `-` - standard input (STDIO)
  * `TCP4:<params>` - set tcp4 connection with specific params
    * `[hostname|ip]` - set hostname/ip
    * `[1-65535]` - set port number

 ###### Redirecting TCP-traffic to a UNIX domain socket under Linux

 ```bash
 socat TCP-LISTEN:1234,bind=127.0.0.1,reuseaddr,fork,su=nobody,range=127.0.0.0/8 UNIX-CLIENT:/tmp/foo
 ```

  * `TCP-LISTEN:<params>` - set tcp listen with specific params
    * `[1-65535]` - set port number
    * `bind=[hostname|ip]` - set bind hostname/ip
    * `reuseaddr` -
    * `fork` -
    * `su=nobody` -
    * `range=[ip-range]` -
  * `UNIX-CLIENT:<params>`
    * `filename` -

 ##### Tool: [lsof](http://www.dest-unreach.org/socat/doc/socat.html/)

 ###### Show process that use internet connection at the moment

 ```bash
 lsof -P -i -n
 ```

 **Tool: [netstat](http://www.dest-unreach.org/socat/doc/socat.html/)**

 ###### Graph # of connections for each hosts

 ```bash
 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 "" }'
 ```

 <a name="programming"><b>Programming</b></a>

 ##### Tool: [awk](https://curl.haxx.se)

 ###### Remove duplicate entries in a file without sorting

 ```bash
 awk '!x[$0]++' filename
 ```