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05-26-2015, 08:40 AM
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#1
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LQ Newbie
Registered: Mar 2007
Posts: 8
Rep:
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X forwarding issue.
I have a server that is refusing to forward an X session. I'm using xming on my desktop. I've tested on other servers, and I'm able to forward just fine. On the problem server, I log in:
Quote:
[me@stubbornserver1 ~]$ export DISPLAY=10.1.1.2:0.0
[me@stubbornserver1 ~]$ xlogo
Error: Can't open display: 10.1.1.2:0.0
[me@stubbornserver1 ~]$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.6 (Santiago)
[me@stubbornserver1 ~]$ xhost +
xhost: unable to open display "10.1.1.2:0.0"
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I'm unable to find a difference in settings between this server, and the servers that forward with no issue. Any suggestions?
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05-26-2015, 08:42 AM
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#2
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LQ Addict
Registered: Mar 2012
Location: Hungary
Distribution: debian/ubuntu/suse ...
Posts: 23,621
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you need to execute xhost+ on 10.1.1.2
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05-26-2015, 09:01 AM
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#3
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LQ Newbie
Registered: Mar 2007
Posts: 8
Original Poster
Rep:
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10.1.1.2 is my desktop (Windows box). I don't have xhost there.
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05-26-2015, 09:29 AM
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#4
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Member
Registered: Aug 2012
Location: Ontario, Canada
Distribution: Slackware 14.2, LFS-current, NetBSD 6.1.3, OpenIndiana
Posts: 319
Rep: 
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Silly question, is X forwarding enabled in the client?
Is X11Forwarding set to yes in the servers /etc/ssh/sshd_config?
Is xauth installed on the server?
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05-26-2015, 09:49 AM
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#5
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LQ Newbie
Registered: Mar 2007
Posts: 8
Original Poster
Rep:
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There are no silly questions.
Using xming on the client, and I'm able to forward X from other servers to this same client.
From the server
Quote:
[me@stubbornserver1 ~]$ grep X11 /etc/ssh/sshd_config
#X11Forwarding no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
# X11Forwarding no
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xauth is on the server
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05-26-2015, 10:31 AM
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#6
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Member
Registered: Aug 2012
Location: Ontario, Canada
Distribution: Slackware 14.2, LFS-current, NetBSD 6.1.3, OpenIndiana
Posts: 319
Rep: 
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Okay are you using putty to connect and you have enabled X11Forwarding in putty as well?
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05-26-2015, 11:17 AM
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#7
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LQ Newbie
Registered: Mar 2007
Posts: 8
Original Poster
Rep:
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OK, so the issue is now resolved.
I've been using cygwin. I just switched to putty, and tried it, and got the error. But then I changed the display from my ip to localhost:10.0, and it works. I still don't understand why it works fine with cygwin and my client IP on the other servers, just not this one server. But since this works, I'll just use putty for this one server and not worry about it.
Thank you for your suggestions and help.
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