gui-apps not opening, when i login as "su -"

praka123 · 09-03-2006, 05:46 AM

Hello All,
I use Debian Sarge .i cant open any gui apps for eg;gedit as "su -"
i tried exporting $DISPLAY value

Code:

prakash@sarge:~$ echo $DISPLAY
:0.0
prakash@sarge:~$ su -
Password:
sarge:~# export DISPLAY=:0.0
sarge:~# gedit
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified


(gedit:9926): Gtk-WARNING **: cannot open display:

Code:

prakash@sarge:~$ xhost +
access control disabled, clients can connect from any host

now if i try opening gedit it will open.so any help..

eddie · 09-03-2006, 10:25 AM

it is a security feature so that users don't run GUI apps as Root. Anyways, have a look here for a few solutions
http://www.mepislovers-wiki.org/inde...ograms_as_root

praka123 · 09-03-2006, 12:41 PM

Nyways i already installed sux,which allows to run gui-apps when login as :

Code:

prakash@sarge:~$ sux -
Password:
sarge:~# gedit

but where do those security things cant we modify for logon..i understand that acl is enabled in default for most distros..but they allow running progs as "su",what is wrong with "su -"..thanks all.

GNUrag · 09-03-2006, 01:40 PM

Your X Server is not allowing another user to open Your dosplay.

You need to disable X authentication.

$ xhost +

and then switch users;

Directly giving su retains your original user's environment variables, and su - loads the new user's environment profile. Hence the disparity.

praka123 · 09-03-2006, 07:59 PM

I dont want any compromise in security..so no "xhost +".for now happy with "sux -".i use this command as a shortcut in my gnome taskbar with "run in terminal ticked",so that if i click it show a passwd prompt and directly i can be root.this is for some purposes like

Code: