Port Forwarding Using SSH

ssh -L [LPROT]:127.0.0.1:[RPORT] [RHOSTa]

Let’s say you want to piggyback on a server server1 that you have access onto another server server2.system.local you don’t have direct access to — however server1 have access to server2.system.local — the following command can be used:

ssh -L 8443:server2.system.local:443 server1

You do now have access to server2:443 using localhost:8443 from your own machine as long as the ssh connection to server1 is up.