Hi!,

I'll try to explain you...

I have a problem when I export display from a linux machine,

PCPRUEBA is a SUSE 9.1

From other linux called pcserver I write...


# DISPLAY=pcprueba:0.0
# export DISPLAY
# xclock

And the server say Error: Can't open display "pcprueba:0.0"

And I don't know what happen. I revised all and I don't find any errors


Help Please!!!

Have you run xhost + pcserver_or_its_IP on pcprueba
Check if your box (pcprueba) runs X without -nolisten tcp option
R U using gnome or KDE?


Levente

Just do "export DISPLAY=:0.0" and all should be fine...

R U thinking in ssh forwarding ? Then why the hell do you need export DISPLAY???? it is automatically set by ssh. BTW client should be configured for x11 forwarding too or use -X in command line.

Levente

Hi all, I'm Dan7

I finded the solution... Edit file /etc/X11/xdm/Xservers and modify the line:


:0 local /usr/X11R6/bin/X -nolisten tcp -br : 1 vt8

and replace by:

:0 local /usr/X11R6/bin/X -br : 1 vt8.

Now all work like we need...

Thanks all for yours responses...

Hi dan7,


Do you trust your network? By removing the -nolisten tcp you will communicate in clear text on the network.
If netstat -ln shows a line 0.0.0.0:6000 then X configured without the -nolisten tcp

Use the ssh x11 forwarding that way it will be encrypted.
Check your boxes.
From box A ( which has the X server and will display clients) connect to box B (where the X client will run) by ssh
A> ssh -X -f B mozilla
or put ForwardX11 yes into /etc/ssh/ssh_config instead of -X in command line
type your (B) pass and mozilla will be displayed on the X server (A)

Dont forget to check that on box B sshd is configured for x11 forwarding
/etc/ssh/sshd_config contains the line
X11Forwarding yes
Levente