Re: xlib

[Kent West <westk@nicanor.acu.edu>]

Christian Schoenebeck wrote:
> Am Donnerstag, 1. August 2002 20:05 schrieb Jianbo Wang:
>
> > Hi,
> >
> > I installed woody with kernel of 2.2.20. i always got display
> > problem. When I use ssh to a host (in Redhat), DISPLAY is automaticaly set
> > and I can popup a Xwin. But I cannot do it in woody. When I su to root,
> > nomatter how I set DISPLAY, use xhost, I cannot popup a Xwin, and got the
> > following error:
> > Xlib: connection to ":0.0" refused by server
> > Xlib: Client is not authorized to connect to Server
> >
> > Any advice? Thanks!
>
>
> I've never done that before, but AFAIK you have to activate X11 forwarding:
>
> 	X11Forwarding yes
>
> in the config file(s) of sshd. And you need the 'magic cookie' 
> ($home/.Xauthority) from the xservers machine to be allowed to connect an 
> xclient to the xserver.
>
> Hope that helps.
>
> Christian

It has been my experience that you don't need to mess with the cookies, 
but yes, you do need to set X11Forwarding to yes in /etc/ssh/sshd_config 
(not ssh_config).

Then when you connect, don't use the command "ssh host@wherever.foo"; 
instead use the command "ssh -X host@wherever.foo".

Kent