added one-liners
- signed-off-by: trimstray <trimstray@gmail.com>
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trimstray
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README.md
461
README.md
@ -5,7 +5,7 @@
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<br>
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<h4 align="center">A collection of awesome lists, manuals, blogs, hacks and tools for <b>Awesome Ninja Admins</b>.</h4>
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<h4 align="center">A collection of awesome lists, manuals, blogs, hacks, one-liners and tools for <b>Awesome Ninja Admins</b>.</h4>
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<br>
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@ -213,13 +213,6 @@ performance of any of your sites from across the globe.<br>
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:small_orange_diamond: <a href="https://emeraldonion.org/"><b>Emerald Onion</b></a> - Seattle-based encrypted-transit internet service provider.<br>
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</p>
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#### One-liners
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<p>
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: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>
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: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>
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</p>
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#### Lists
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<p>
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@ -248,3 +241,455 @@ performance of any of your sites from across the globe.<br>
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: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>
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: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>
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</p>
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#### One-liners
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##### Table of Contents
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- **[System](#system)**
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* [terminal](#tool-terminal)
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* [mount](#tool-mount)
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* [fuser](#tool-fuser)
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- **[HTTP/HTTPS](#http-https)**
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* [curl](#tool-curl)
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* [httpie](#tool-httpie)
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- **[Network](#network)**
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* [openssh](#tool-openssh)
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* [linux-dev](#tool-linux-dev)
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* [tcpdump](#tool-tcpdump)
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* [ngrep](#tool-ngrep)
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* [hping3](#tool-hping3)
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* [netcat](#tool-netcat)
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* [socat](#tool-socat)
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* [lsof](#tool-lsof)
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* [netstat](#tool-nestat)
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- **[Programming](#programming)**
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* [awk](#tool-awk)
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<a name="system"><b>System</b></a>
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##### Tool: [terminal](https://curl.haxx.se)
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###### Close shell keeping all subprocess running
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```bash
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disown -a && exit
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```
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###### Drop shell history
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```bash
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kill -9 $$
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```
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###### List of commands you use most often
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```bash
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history | awk '{ a[$2]++ } END { for(i in a) { print a[i] " " i } }' | sort -rn | head
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```
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###### Quickly backup a file
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```bash
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cp filename{,.orig}
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```
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###### Delete all files in a folder that don't match a certain file extension
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```bash
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rm !(*.foo|*.bar|*.baz)
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```
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###### Edit a file on a remote host using vim
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```bash
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vim scp://user@host//etc/fstab
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```
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___
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##### Tool: [mount](https://curl.haxx.se)
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###### Mount a temporary ram partition
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```bash
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mount -t tmpfs tmpfs /mnt -o size=64M
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```
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* `-t` - filesystem type
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* `-o` - mount options
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___
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##### Tool: [fuser](https://curl.haxx.se)
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###### Kills a process that is locking a file
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```bash
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fuser -k filename
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```
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<a name="http-https"><b>HTTP/HTTPS</b></a>
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##### Tool: [curl](https://curl.haxx.se)
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```bash
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curl -Iks https://www.google.com
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```
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* `-I` - show response headers only
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* `-k` - insecure connection when using ssl
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* `-s` - silent mode (not display body)
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```bash
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curl -Iks --location -X GET -A "x-agent" https://www.google.com
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```
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* `--location` - follow redirects
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* `-X` - set method
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* `-A` - set user-agent
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```bash
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curl -Iks --location -X GET -A "x-agent" --proxy http://127.0.0.1:16379 https://www.google.com
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```
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* `--proxy [socks5://|http://]` - set proxy server
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___
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##### Tool: [httpie](https://httpie.org/)
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```bash
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http -p Hh https://www.google.com
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```
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* `-p` - print request and response headers
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* `H` - request headers
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* `B` - request body
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* `h` - response headers
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* `b` - response body
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```bash
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http -p Hh --follow --max-redirects 5 --verify no https://www.google.com
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```
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* `-F, --follow` - follow redirects
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* `--max-redirects N` - maximum for `--follow`
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* `--verify no` - skip SSL verification
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```bash
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http -p Hh --follow --max-redirects 5 --verify no --proxy http:http://127.0.0.1:16379 https://www.google.com
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```
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* `--proxy [http:]` - set proxy server
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<a name="network"><b>Network</b></a>
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##### Tool: [openssh](https://www.openssh.com/)
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###### Compare a remote file with a local file
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```bash
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ssh user@host cat /path/to/remotefile | diff /path/to/localfile -
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```
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###### SSH connection through host in the middle
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```bash
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ssh -t reachable_host ssh unreachable_host
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```
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___
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##### Tool: [linux-dev](https://www.tldp.org/LDP/abs/html/devref1.html)
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###### Testing remote connection to port
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```bash
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timeout 1 bash -c "</dev/tcp/<host>/<port>" >/dev/null 2>&1 ; echo $?
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```
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* `<host>` - set remote host
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* `<port>` - set destination port
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___
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##### Tool: [tcpdump](http://www.tcpdump.org/)
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```bash
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tcpdump -ne -i eth0 -Q in host 192.168.252.1 and port 443
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```
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* `-n` - don't convert addresses
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* `-e` - print the link-level headers
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* `-i [iface]` - set interface
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* `-Q|-D [in|out|inout]` - choose send/receive direction (`-D` - for old tcpdump versions)
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* `host [ip|hostname]` - set host, also `[host not]`
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* `[and|or]` - set logic
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* `port [1-65535]` - set port number, also `[port not]`
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```bash
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tcpdump -ne -i eth0 -Q in host 192.168.252.1 and port 443 -c 5 -w tcpdump.pcap
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```
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* `-c [num]` - capture only num number of packets
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* `-w [filename]` - write packets to file, `-r [filename]` - reading from file
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___
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##### Tool: [ngrep](http://ngrep.sourceforge.net/usage.html)
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```bash
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ngrep -d eth0 "www.google.com" port 443
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```
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* `-d [iface|any]` - set interface
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* `[domain]` - set hostname
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* `port [1-65535]` - set port number
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```bash
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ngrep -d eth0 "www.google.com" (host 10.240.20.2) and (port 443)
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```
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* `(host [ip|hostname])` - filter by ip or hostname
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* `(port [1-65535])` - filter by port number
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```bash
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ngrep -d eth0 -qt -O ngrep.pcap "www.google.com" port 443
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```
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* `-q` - quiet mode (only payloads)
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* `-t` - added timestamps
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* `-O [filename]` - save output to file, `-I [filename]` - reading from file
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```bash
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ngrep -d eth0 -qt 'HTTP' 'tcp'
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```
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* `HTTP` - show http headers
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* `tcp|udp` - set protocol
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* `[src|dst] host [ip|hostname]` - set direction for specific node
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___
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##### Tool: [hping3](http://www.hping.org/)
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```bash
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hping3 -V -p 80 -s 5050 <scan_type> www.google.com
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```
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* `-V|--verbose` - verbose mode
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* `-p|--destport` - set destination port
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* `-s|--baseport` - set source port
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* `<scan_type>` - set scan type
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* `-F|--fin` - set FIN flag, port open if no reply
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* `-S|--syn` - set SYN flag
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* `-P|--push` - set PUSH flag
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* `-A|--ack` - set ACK flag (use when ping is blocked, RST response back if the port is open)
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* `-U|--urg` - set URG flag
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* `-Y|--ymas` - set Y unused flag (0x80 - nullscan), port open if no reply
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* `-M 0 -UPF` - set TCP sequence number and scan type (URG+PUSH+FIN), port open if no reply
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```bash
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hping3 -V -c 1 -1 -C 8 www.google.com
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```
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* `-c [num]` - packet count
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* `-1` - set ICMP mode
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* `-C|--icmptype [icmp-num]` - set icmp type (default icmp-echo = 8)
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```bash
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hping3 -V -c 1000000 -d 120 -S -w 64 -p 80 --flood --rand-source <remote_host>
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```
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* `--flood` - sent packets as fast as possible (don't show replies)
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* `--rand-source` - random source address mode
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* `-d --data` - data size
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* `-w|--win` - winsize (default 64)
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___
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##### Tool: [netcat](http://netcat.sourceforge.net/)
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```bash
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nc -kl 5000
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```
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* `-l` - listen for an incoming connection
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* `-k` - listening after client has disconnected
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* `>filename.out` - save receive data to file (optional)
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```bash
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nc 192.168.0.1 5051 < filename.in
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```
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* `< filename.in` - send data to remote host
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```bash
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nc -vz 10.240.30.3 5000
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```
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* `-v` - verbose output
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* `-z` - scan for listening daemons
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```bash
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nc -vzu 10.240.30.3 1-65535
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```
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* `-u` - scan only udp ports
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###### Transfer data file (archive)
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```bash
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server> nc -l 5000 | tar xzvfp -
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client> tar czvfp - /path/to/dir | nc 10.240.30.3 5000
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```
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###### Launch remote shell
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```bash
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server> nc -l 5000 -e /bin/bash
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client> nc 10.240.30.3 5000
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```
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###### Simple HTTP Server
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> Restarts web server after each request - remove `while` condition for only single connection.
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```bash
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cat > index.html << __EOF__
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<!doctype html>
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
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<title></title>
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<meta name="description" content="">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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</head>
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<body>
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<p>
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Hello! It's a site.
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</p>
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</body>
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</html>
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__EOF__
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```
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```bash
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server> while : ; do \
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(echo -ne "HTTP/1.1 200 OK\r\nContent-Length: $(wc -c <index.html)\r\n\r\n" ; cat index.html;) \
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| nc -l -p 5000 \
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; done
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```
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* `-p` - port number
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###### Simple HTTP Proxy (single connection)
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```bash
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#!/usr/bin/env bash
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if [[ $# != 2 ]] ; then
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printf "%s\\n" \
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"usage: ./nc-proxy listen-port bk_host:bk_port"
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fi
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_listen_port="$1"
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_bk_host=$(echo "$2" | cut -d ":" -f1)
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_bk_port=$(echo "$2" | cut -d ":" -f2)
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printf " lport: %s\\nbk_host: %s\\nbk_port: %s\\n\\n" \
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"$_listen_port" "$_bk_host" "$_bk_port"
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_tmp=$(mktemp -d)
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_back="$_tmp/pipe.back"
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_sent="$_tmp/pipe.sent"
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_recv="$_tmp/pipe.recv"
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trap 'rm -rf "$_tmp"' EXIT
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mkfifo -m 0600 "$_back" "$_sent" "$_recv"
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sed "s/^/=> /" <"$_sent" &
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sed "s/^/<= /" <"$_recv" &
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nc -l -p "$_listen_port" <"$_back" \
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| tee "$_sent" \
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| nc "$_bk_host" "$_bk_port" \
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| tee "$_recv" >"$_back"
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```
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```bash
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server> chmod +x nc-proxy && ./nc-proxy 8080 192.168.252.10:8000
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lport: 8080
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bk_host: 192.168.252.10
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bk_port: 8000
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client> http -p h 10.240.30.3:8080
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HTTP/1.1 200 OK
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Accept-Ranges: bytes
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Cache-Control: max-age=31536000
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Content-Length: 2748
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Content-Type: text/html; charset=utf-8
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Date: Sun, 01 Jul 2018 20:12:08 GMT
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Last-Modified: Sun, 01 Apr 2018 21:53:37 GMT
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```
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___
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##### Tool: [socat](http://www.dest-unreach.org/socat/doc/socat.html/)
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###### Testing remote connection to port
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```bash
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socat - TCP4:10.240.30.3:22
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```
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* `-` - standard input (STDIO)
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* `TCP4:<params>` - set tcp4 connection with specific params
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* `[hostname|ip]` - set hostname/ip
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* `[1-65535]` - set port number
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###### Redirecting TCP-traffic to a UNIX domain socket under Linux
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```bash
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socat TCP-LISTEN:1234,bind=127.0.0.1,reuseaddr,fork,su=nobody,range=127.0.0.0/8 UNIX-CLIENT:/tmp/foo
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```
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* `TCP-LISTEN:<params>` - set tcp listen with specific params
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* `[1-65535]` - set port number
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* `bind=[hostname|ip]` - set bind hostname/ip
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* `reuseaddr` -
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* `fork` -
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* `su=nobody` -
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* `range=[ip-range]` -
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* `UNIX-CLIENT:<params>`
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* `filename` -
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##### Tool: [lsof](http://www.dest-unreach.org/socat/doc/socat.html/)
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###### Show process that use internet connection at the moment
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```bash
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lsof -P -i -n
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```
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**Tool: [netstat](http://www.dest-unreach.org/socat/doc/socat.html/)**
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###### Graph # of connections for each hosts
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```bash
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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 "" }'
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```
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<a name="programming"><b>Programming</b></a>
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##### Tool: [awk](https://curl.haxx.se)
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###### Remove duplicate entries in a file without sorting
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```bash
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awk '!x[$0]++' filename
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```
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