From Taclug

SSH Tips, Tricks, and Tools

SSH Tunneling

• From Scott Hunter:

I figured out the correct way to forward through to a private network using ssh. It makes sense, but the man pages are missing some of the necessary information to make it work.

In my case I was trying to reach host:crispytaco which was behind host:hamburgurer from monitoring server:dietcoke.

The way to do this is to initiate the ssh command from dietcoke as such:

dietcoke # ssh -N -f  -L 5667:crispytaco:5666 hamburger

Now with an entry in /etc/hosts on dietcoke:

127.0.0.1 crispytaco

dietcoke can now monitor crispytaco on port 5667. The connection is tunneled magically to my target.