X over ssh from behind a firewall

[ph34r]

OK, so I just got DSL at home, and my machine is the one connected to it. My firewall is blocking everything except ssh.

At work, I'm behind a firewall as well. I can ssh to my home machine, but if I try

ssh -X user@homebox xterm

It can't connect to my local display. I've done xhost + to keep that from blocking stuff, but I still can't get anything from home to appear locally.

Any ideas?

[mcdougrs]

Ok these are some dumb questions but they are the basics of the whole X-forwarding thing.

1) Are you running an X-server on your machine at work, or are you running linux with X?

2) With a client like PuTTY there is an explicit option to check for X11 forwarding. See if your ssh client has something like that.

[ph34r]

Slackware 8.1 at home, Slackware 9.0 at work...

[gorn]

check the sshd.conf and ssh.conf maybe X forwarding is disabled there. (sshd on the server, ssh on the client)

also maybe just try ssh -X foo@bar.com and then start the xterm rather than starting it from the command line