I want to start X app on display:0 remotely. How?

[Matt Graham]

From: "kitepilot at kitepilot.com" <kitepilot at kitepilot.com>
> I have a machine running remotely which I can ONLY SSH into.
> I know that the machine is running X and "operator" is logged in and
> [has access to :0]
> 
> What I want is to: 
> ssh -l operator remote.host
> (insert some magic here) kcalc 

> Now kcalc pops on display:0 and operator can see and use kcalc

There are multiple ways of doing this.  If you log in via ssh as
operator, and operator has the appropriate MIT Magic Cookie in his ~
, then all you have to do is:

export DISPLAY=:0
nohup kcalc &

...and kcalc will show up on :0 of the machine you logged in to.
This should work without a problem.  There are access control 
things to think about if you log in as a user who doesn't have
the magic cookie required for access to :0, naturally.

-- 
Matt G / Dances With Crows
The Crow202 Blog:  http://crow202.org/wordpress/
There is no Darkness in Eternity/But only Light too dim for us to see