SSH Port Forwarding through a firewall

From: Chris (usenet@cmulcahy.mailshell.com)
Date: 02/08/03 

From: "Chris" <usenet@cmulcahy.mailshell.com>
Date: Sat, 08 Feb 2003 01:04:49 GMT

Greetings:

I have a simple setup but would like some guidance on setup and usage
of SSH.

I have a Linux box running:
  SSH Version 1.2.25 [i586-unknown-linux], protocol version 1.5.

I also have a Windows box running:
  OpenSSH_3.5p1, SSH protocols 1.5/2.0, OpenSSL 0x0090607f

The Linux box is behing my router/firewall at home. I am only allowing
port 22 (which has SSH) through for obvious reasons. I would like to
use my proxy server at home (Privoxy with banner/popup filtering).
What commands would I use to get this running?

Within the firewall on a machine with full access, I've used:
  ssh -l chris -L 4444:proxybox:3128 proxybox

That is successful, but requires access to port 3128 on the proxybox (I
believe that's what it's doing, right?) and setting my browser proxy
server to http://127.0.0.1:4444. I've been unsuccessful doing the same
thing from outside the firewall.

After writing this message, it is appearing to me as if it should have
worked. SSHd should be forwarding from port 22 to port 3128 on the
proxybox. Hmm. Any suggestions?

Just to head off the question, yes, I am able to ssh into this proxybox
from outside the firewall.

Thanks for any help!
Chris

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