No remote access to XFree86 server with SuSE 9.1

mschutte · 01-19-2005, 12:00 PM

Hi SuSE 9.1 users!

I have a problem with my X server when I try to access it with a DISPLAY environment variable which is different to the default value ":0". Look at the following:

$ export DISPLAY=localhost:0
$ xeyes
Error: Can't open display: localhost:0

Even if I try
$ xhost +localhost
or (yuk!)
$ xhost +
I always get the same error message when starting any application which has to connect to the X server. It is no problem, however, to run an application remotely with my other distros, Debian Sid and Mandrakelinux 10.1.

Can anyone help me, please???

abisko00 · 01-20-2005, 02:33 AM

You could try to delete the -nolisten tcp tag in /etc/X11/xdm/Xservers

I guess this is for remote connection. Good luck!

mschutte · 01-20-2005, 09:11 AM

Thank you very much! Your hint has been very useful.

What I have really done is the following:
I changed /etc/X11/xdm/Xservers like you told me, but this didn't change anything. So I greped some X directories trying to find -nolisten tcp. I found it in SuSE's startx script, which said the following:

Code:

# handle TCP port 6000
. /etc/sysconfig/displaymanager
test "$DISPLAYMANAGER_XSERVER_TCP_PORT_6000_OPEN" != "yes" && \
    serverargs="$serverargs -nolisten tcp"

So I changed /etc/sysconfig/displaymanager:
DISPLAYMANAGER_XSERVER_TCP_PORT_6000_OPEN="yes"
And it worked!

abisko00 · 01-20-2005, 09:18 AM

Cool, how you found the solution!

I looked at it myself now and found the hint to use ssh access instead. Maybe this is the better (more secure) way to do it?!

mschutte · 01-20-2005, 12:58 PM

I'm sure you are right (the name says it all)! But currently I like this solution. I don't have to read my mail via fetchmail any more and can use that beautiful kmail remotely!

If you know how to use such a secure connection to an X server, please let me know! Thank you again for helping me!

mschutte · 01-20-2005, 02:03 PM

I got it! X ssh access is so easy! I read the how-to about X Remote Applications. First I removed the tcp connection from my X server (in /etc/sysconfig/displaymanager) and then I runned:

$ ssh -X -lloginname hostname
Enter your password
remote$ kmail

Done!