Re: ssh and X display forwarding

[Håkon Alstadheim <hakon@alstadheim.priv.no>]

Jochen Schulz wrote:
> Alan Chandler:
>   
> > I ssh into my server, but when I get there the DISPLAY variable is not 
> > set up, meaning I can't run graphical programs.
> >     
>
> What command line are you using?
>
> $ ssh -Y server
>
> should suffice.
>
>   
> > On my desktop
> >
> > /etc/kde3/kdm/kdmrc has the ServerArgsLocal=-nolisten TCP commented out
> >     
>
> Not necessary.
>
>   
> > /etc/ssh/ssh_config specifies X11Forwarding as yes
> > /etc/ssh/sshd_config on the server also allows X11Forwarding
> >     
>
> Good.
>
>   
> > I have run xhost during start up, so the server is an allowed connector 
> > to my display.
> >     
>
> Not necessary.
>   
In fact the point of using ssh is to not have to open up your X-server 
other than to localhost. Check the setup of your ssh server. The ssh 
server needs to create a "virtual" X display on the box you ar ssh-ing 
into, and forward that through to your real display. Then the name of 
that virtual display (e.g. localhost:10.0) needs to be allowed into the 
environment on the box you are ssh-ing into. Check the manual 
sshd_config(5).