Remote ssh login and X

qwkbrnfox · Posted: Tue Nov 12, 2002 9:07 pm Post subject: Remote ssh login and X

Hi All,

This ones a bit obscure. In a former life (RH 7.3) when I ssh'ed to another machine, I could run an X program remotely and the window would pop up locally. Now, in Gentoo, it won't. I've set xhost locally, so that doesn't seem to be the problem. Instead, the remote DISPLAY variable isn't being set properly, which seemed to happen automagically before. Note that I'm behind a firewall.

Previously (when this worked) DISPLAY=localhost:16.0
Now DISPLAY={ipname assigned to firewall}:0

I don't know where the 16 comes from, so it's hard to do this manually.

Thanks for any advice!

Todd

choward · Tux's lil' helper Joined: 08 Nov 2002 Posts: 92

When you ssh did you remember to specify the -X flag? That caused me some problems when trying to run remote programs off the University server.
_________________
Craig Howard
4B Computer Science -- University of Waterloo

qwkbrnfox · Posted: Tue Nov 12, 2002 10:04 pm Post subject:

Ah-ha!

That's it. Thanks very much!

The flag must have been set automatically (somehow) in RH.

Bi9Kahuna · n00b Joined: 17 Oct 2002 Posts: 7

Hi there,

You'll want to take a look at /etc/ssh/ssh_config. The parameters you want to change are the ForwardAgent and ForwardX11 parameters. I have mine set as below with the default being to forward (host *) but for specific hosts, I don't want forwarding turned on (servers that don't have X installed!).

Cheers!