tietohacker
asked on
Xlib: No protocol specified
Hi,
I have winXP on my desktop and have Xming X server installed. I daliy login to solaris and linux machines via putty ssh with X11 forwarding turned on to display solaris and linux X programs to my pc.
But today I logged on the a server I never been to before and there I could not display X programs. I've tried with ssh and telnet via putty. When I login via ssh with X11 forwarding I dont have any DISPLAY varible at all. Then I use telnet and set the DISPLAY variable manualy and then try to start a program I get the following error:
root@donald-bash# export DISPLAY=192.10.1.101:0
root@donald-bash# /usr/openwin/bin/xclock
Xlib: connection to "192.10.1.101:0.0" refused by server
Xlib: No protocol specified
Error: Can't open display: 192.10.1.101:0
root@donald-bash#
Why do I get this?
Is there a way to restrict X displays in the solaris/linux box?
I have winXP on my desktop and have Xming X server installed. I daliy login to solaris and linux machines via putty ssh with X11 forwarding turned on to display solaris and linux X programs to my pc.
But today I logged on the a server I never been to before and there I could not display X programs. I've tried with ssh and telnet via putty. When I login via ssh with X11 forwarding I dont have any DISPLAY varible at all. Then I use telnet and set the DISPLAY variable manualy and then try to start a program I get the following error:
root@donald-bash# export DISPLAY=192.10.1.101:0
root@donald-bash# /usr/openwin/bin/xclock
Xlib: connection to "192.10.1.101:0.0" refused by server
Xlib: No protocol specified
Error: Can't open display: 192.10.1.101:0
root@donald-bash#
Why do I get this?
Is there a way to restrict X displays in the solaris/linux box?
ASKER
Hi blu,
I dont have any /etc/ssh dir at all. The sshd daemon exists under /usr/local/sbin and ssh + ssh-keygen etc. exists under /usr/local/bin.
If this dir doesent exists, can I create it and the file you mentioned?
I dont have any /etc/ssh dir at all. The sshd daemon exists under /usr/local/sbin and ssh + ssh-keygen etc. exists under /usr/local/bin.
If this dir doesent exists, can I create it and the file you mentioned?
Yes, that should work just fine. Take a look at the corresponding directory from the working servers. Do not copy any files other than the sshd_config file, the others are system specific.
ASKER
Blu,
I found the sshd_config file in /usr/local/etc/ dir. I made the changes and comment out:
X11Forwarding yes
Tried to login again, but no DISPLAY variable is set even if I have the "X11 forwarding" button marked in putty.
Also tried to create the /etc/ssh dir and placed the sshd_config file in that dir but that didnt work either.
Is there a way to see which config file sshd is useing and where it exists?
/T
I found the sshd_config file in /usr/local/etc/ dir. I made the changes and comment out:
X11Forwarding yes
Tried to login again, but no DISPLAY variable is set even if I have the "X11 forwarding" button marked in putty.
Also tried to create the /etc/ssh dir and placed the sshd_config file in that dir but that didnt work either.
Is there a way to see which config file sshd is useing and where it exists?
/T
You want to make sure "X11Forwarding yes" is not commented out.
Please uncomment it, then login in again. Do you get a DISPLAY variable set this time? If so, what is it set to?
Please uncomment it, then login in again. Do you get a DISPLAY variable set this time? If so, what is it set to?
ASKER
No its not commented out.
Im sorry but I dont get the DISPLAY variable set after relogin.
/T
Im sorry but I dont get the DISPLAY variable set after relogin.
/T
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ASKER
"ps -ef | grep sshd" tells me that the binary exists under /usr/local/sbin.
If I type "strings sshd | grep conf" it tels me that it uses /usr/local/etc/sshd_conf as the config file anfd that one I have chaged.
I then made:
"kill -HUP pid"
After a relogin everything works fine! It was only a HUP to the sshd process that was necessary.
THANKS!
/T
If I type "strings sshd | grep conf" it tels me that it uses /usr/local/etc/sshd_conf as the config file anfd that one I have chaged.
I then made:
"kill -HUP pid"
After a relogin everything works fine! It was only a HUP to the sshd process that was necessary.
THANKS!
/T
I think you have two separate problems. One is that x-forwarding is not working on the new server. The other is why direct X connections (not over ssh) do not work.
I suspect that the direct X connections do not work for any of the servers, not just the new one. The reason you don't know that is that x-forwarding is working on the others.
As to the X-forwarding, the server must have x-forwarding configured in the sshd configuration file, otherwise X-forwarding does not work. On the new server, look for the file /etc/shh/sshd_config. In that file look for a line that says "X11Forwarding yes". If
that line does not exist or is commented out, that is the problem.