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Re: [Xen-users] Vnc unable to open Display on xen CentOS

On Tue, Dec 22, 2009 at 4:12 PM, Tapas Mishra <tapas@xxxxxxxxxxxx> wrote:
> I do not have any windows machine with me my Xen is on CentOS and rest all
> are Ubuntu machines

Let me rephrase the question. Where are you ssh-ing the server from? A
Windows notebook? Mac? Ubuntu? Once you have that, you can search
Google on how to enable ssh forwarding when using that particular
CLIENT OS. Most linux distros that I know of already enable X
forwarding on server side, so it's usually just a matter of
configuring the client.

> Thanks for these links
> but can you point me to the right log file which I should check in the case
> of failures of X forwarding on SSH that should be able to help me a bit.

not much. Basically when you have that error unable to open display
"", and you're connecting via ssh, then most likely its ssh forwarding
problem. Sometimes it's as simple to fix as running "ssh -X" instead
of just ssh.


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