Simple TCP Relaying with NetCat¶
This is a simple lab that looks at how to setup a traffic relay using netcat.
We are amining to create a relay between ports 4444 and 22 - any traffic coming to 4444 will be redirected to port 22.
# setup listener on port 22 nc -lvvp 22 # setup listener on port 4444 and direct stdout to port 22 using netcat nc -lvvp 4444 | nc localhost 22 # send a string "test" to port 4444 using netcat echo test | nc localhost 4444
Below is an animated demo of how this all works in action: