RE: Help with XDMCP over SSH

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Kanwar Ranbir Sandhu wrote:
> On Wed, 2007-02-28 at 14:55 +0000, Plant, Dean wrote:
>> I am trying to get XDMCP working over SSH on CentOS 4.4 from a
>> windoze box running Cygwin/Putty
> 
> [snip]
> 
>> Both commands will successfully display a X window and show the X
>> mouse pointer but not the chooser. Can anyone tell me what I am
>> doing wrong? 
> 
> Perhaps your ssh tunnel isn't configured properly.  Let's see how
> you're setting up the tunnel.
> 

In sshd I have X11 Forwarding set

# cat /etc/ssh/sshd_config | grep X11F
X11Forwarding yes

I have Putty configured with X11 forwarding

>From Putty connection log:

2007-03-01 10:06:00	Access granted
2007-03-01 10:06:00	Opened channel for session
2007-03-01 10:06:00	Requesting X11 forwarding
2007-03-01 10:06:00	X11 forwarding enabled
2007-03-01 10:06:00	Allocated pty (ospeed 38400bps, ispeed 38400bps)
2007-03-01 10:06:00	Started a shell/command

I have a Cygwin X server loaded and I can run an Xterm with no problems.

I have used the System Settings control panel to enable XDMCP and UDP
177 is listening

# netstat -l | grep xdmcp
udp        0      0 *:xdmcp                     *:*

I then log into the host machine and run:

# Xnest :1 -query localhost
Could not init font path element /usr/X11R6/lib/X11/fonts/TTF/, removing
from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/CID/, removing
from list!


After a while I get:
XDM: too many retransmissions, declaring session dead
Could not init font path element /usr/X11R6/lib/X11/fonts/TTF/, removing
from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/CID/, removing
from list!

And in the putty logs I see

2007-03-01 10:20:07	Received X11 connect request from
127.0.0.1:33368
2007-03-01 10:20:07	Opening X11 forward connection succeeded

A Xwindow is displayed but all I see is a black background with the X
mouse pointer.

Thanks

Dean










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