[CentOS] Help with XDMCP over SSH
Plant, Dean
dean.plant at roke.co.uk
Thu Mar 1 12:25:24 UTC 2007
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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