[wplug] ssh with X forwarding not working.

[Ghataora, Hardeep]

Do you get any useful information when you 'ssh -X -vv -X user at B' ?
I think I had this problem on FreeBSD and there was something in the -vv
output relating to it calling an application along the wrong path, I
*think* it was the xauthority stuff.

H

-----Original Message-----
From: John Harrold [mailto:jmh17 at pitt.edu] 
Sent: Monday, May 24, 2004 10:57 AM
To: western PA LUG
Subject: [wplug] ssh with X forwarding not working.



I'm trying to ssh from computer A to computer B. Computer A is running
Redhat 9 and computer B is running Debian (sid). When I ssh from A to B
I'm using the following command:

 ssh -X user at B

On B the /etc/ssh/sshd_config file has:

 X11Forwarding yes

Yet, the X11 forwarding is not working giving me the following error
when I try to run xterm:

useer at B:$ xterm
xterm Xt error: Can't open display:


Now I can ssh from A to other computers and X11 forwarding works fine,
so I tend to believe that the problem is a configuration issue on the
debian machine. There is nothing in /etc/hosts.deny, so I don't believe
tcp wrappers are the problem. 

One solution would be to export my display, but since B is on one side
of the firewall and A is on the other, that isn't really an option. Once
again, I can ssh to other computers on the other side of the firewall
and X11 forwarding works fine.


-- 
---------------------------------------------------------- 
                            | /"\                         
 john harrold               | \ / ASCII ribbon campaign   
 jmh at member.fsf.org      |  X  against HTML mail       
 the most useful idiot      | / \                         
----------------------------------------------------------
 What difference does it make to the dead, the orphans, 
 and the homeless, whether the mad destruction is brought 
 under the name of totalitarianism or the holy name of 
 liberty and democracy?
 --Gandhi
----------------------------------------------------------
  gpg --keyserver keys.indymedia.org --recv-key F65A739E
----------------------------------------------------------