Re: Running X program under different user

[Dennis]

Gene Harris wrote:

You need to use 'su -m', which leaves the environment, including the DISPLAY export unchanged from the current user, but changes the userid to the user you want to switch to.

You can then run your x program as the user you wish to use.

I believe this is a MIT-MAGIC-COOKIE issue and is reasonably well documented in the questions mailing list archive. In your previous KDE life, were you using XFree86 v3 and now you have switched to XFree86 v4? This is one of the first things many users run into after they switch.

Gene

On Saturday 15 February 2003 01:53 pm, Dennis wrote:

Paul A. Mayer wrote:

Hi,

Did you try to call:

xhost +localhost

before your su command?

Looks like your X session is not letting your other user access your
display.

$.02, hope it helps.

/Paul

Dennis wrote:

kitsune wrote:

On Sat, 15 Feb 2003 18:23:18 +0100

Dennis <[EMAIL PROTECTED]> wrote:

Hi,

I'm a former kde user, using Windowmaker now....

And in the past i always used RUN in kde, to startup my favourite
irc client...

RUN had several options to execute programs under a different user
etc, which comes in handy when using IRC...

if that run thing was a command that can be done then it can still
be used under windowmaker...

But now i need to use SU i think to accomplish this, but it doesnt
work :(

wierd it works here...
su <username> -c <command>

example...
su kitsune -c scilab
this will su user kitsune and then run scilab

Does anyone know which command i can use to execute an X program
under a different user?

this will work too...
ssh 127.0.0.1 -X -l <username>
the -X turns on X forwarding

when i try su [user] -c xchat, i get this error:

Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified


Gtk-WARNING **: cannot open display: :0.0

RUN in kde was a kde-specific command...i think it was in the KDE Panel




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Thanx for ur replies...

Tried the xhost command, but i get the exact error message afterwards...
So i guess something else causes the problem..



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Thanx for your reply Gene!

However when i use su -m, i get the same error again!!
Maybe it's because of the security precaution that su has?

" As a security precaution, if the target user's shell is a non-standard shell
(as defined by getusershell(3)) and the caller's real uid is non- zero, su will fail."

I'll check that out...

Ps.. i was already using v4, but now that i dont have the kde panel anymore, i'm forced to use su, which brings me to this issue :)

Greetz Dennis





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