SSH Tunneling

If you are able to connect to a ssh server, you can connect to the whole world. How does that work?

ssh -N user@remote.ssh -L 6667/target.host/6667

The command in pieces:

-N circumvents that a shell gets spawned. user is the user on our remote ssh server. -L is the command for the tunnel. Its three parameters are Local port, target host, target port.