I'm trying
to run a graphical program remotely, without using ssh. I've set the display variable on the server (let's say server.com, Linux, not ubuntu, and no su rights)
to point
to my workstation (workstation.com, ubuntu 10.04)
setenv DISPLAY workstation.com:0
Then on my workstation I've tried both
xhost +server.com
and
xhost +
Then I ssh into the server (to test things):
ssh
[email protected]
and try
to run xclock, and get the following error:
Error: Can't open display: workstation.com:0
I've looked at /etc/ssh/ssh_config on the workstation and I should be forwarding correctly: X11Forwarding yes.
How do I go about troubleshooting this?
What logs on the workstation document these failed attempts?
To explain why I'm doing this: I want
to run a batch job on a server
to debug
an MPI-based parallel program. I want
to run xterm as the batch job executable, per the instructions provided by the system admins.
This setup use
to work. I reinstalled things on my workstation and since then I frequently get one-time message along the lines The authenticity of host 'hostname (XXX.XXX.XXX.XX)' can't be established.
My attempt
to fix the above was
to move my ~/.ssh/known_hosts file
to a back up on both server and host, and then
to ssh from each
to the other with the flag -o StrictHostKeyChecking=no. I no longer get that message, but I was wondering does this play a part in why X11 forwarding is not working?
