Informing other users
peter.garrett at optusnet.com.au
Thu Sep 28 18:18:17 UTC 2006
On Thu, 28 Sep 2006 18:42:32 +0100
Ewan Mac Mahon <ewan at macmahon.me.uk> wrote:
> > > Well, this works with ssh:
> > >
> > > ssh user at host xmessage -display :0 "Free Pizza upstairs in 5 minutes"
> > Thanks, works great!
> Really? It shouldn't work if the user you're logging in as (yourself,
> presumably) is not the user that's logged in to the X server. Unless
> you're doing cunning things as root, of course.
Correct. Unless of course you know the user's password, which in theory
you shouldn't, you would have to ssh in and become root to do it (then su
username-using-the-display ), or something wizardly involving MIT magic
cookies or the like, I guess ... ;-) Of course, I assume you would have
root on the machines you are responsible for, or the sudo equivalent.
This makes sending the message a bit more involved, of course...
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