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startx question

Posted on 2001-08-29
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Last Modified: 2013-12-27
Hi, I am using RedHat Linux 6.2, the following is the problem:

(1) At the server console, I login as root
(2) Then I "su - userSOMEONE" to switch to "userSOMEONE"
(3) Then I "startx" to start the X-window, but I got this error
        Authentication failed - cannot start X server.
        Perhaps you do not have console
ownership?_X11TransSocketUNIXConnect: Can't connect: errno = 111
        giving up.
        xinit:  Connection refused (errno 111):  unable to connect to X
server
        xinit:  No such process (errno 3):  Server error.

However, if I "startx" after step (1), where login as root, the error won't
appear and X-window starts normally.

Does anyone have this experience? Did I missed some settings?
Thanks in advance.
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Question by:eleungks
6 Comments
 
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Accepted Solution

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jlevie earned 150 total points
ID: 6440492
It's behaving the way it is supposed to. When you log in as root, the system gives ownership of the console to root. As a security measure X will fail if the user that starts it isn't the same user that owns the console.

The solution is to log onto the console as the user, not as root, and then start X. If you need root privs later during that session, simply su to root.
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Expert Comment

by:ahoffmann
ID: 6442737
.. or do a
     xhost +
before su - userSOMEONE
(keep security in mind: man xhost)
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Expert Comment

by:garboua
ID: 6464050
I agree with jlevie,you should always log with a generic account, and you can always su to root when needed.
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LVL 1

Expert Comment

by:bearware
ID: 6813452
xhost is not the issue, the other stuff looks correct to me. If there is a good reason to login as root then change. I cant imagine why. Then change the ownership of the console.

Hooky workaround:
Find the console name. (tty?)
as root type:
chown userSOMEONE /dev/tty?
su userSOMEONE
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Expert Comment

by:CleanupPing
ID: 9090221
eleungks:
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