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lowsfer
n00b
Joined: 06 Nov 2009
Posts: 42
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 Posted: Tue May 17, 2011 1:46 am Post subject: SSH session hang on starting GUI program with X11 forwarding |
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Hi guys,
I'm experiencing a problem with starting GUI program via ssh with x11 forwarding. Every time the ssh session just hang. Then I have to "killall ssh" to end the SSH session. Tried both "-X" and "-Y", none worked.
I tried debug mode of ssh "ssh -Xvvv username@host"
when I start xterm, I got the following debug info:
| Code: |
debug1: client_input_channel_open: ctype x11 rchan 3 win 65536 max 16384
debug1: client_request_x11: request from ::1 57420
debug2: fd 7 setting O_NONBLOCK
debug3: fd 7 is O_NONBLOCK
debug1: channel 1: new [x11]
debug1: confirm x11
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Other relevant info:
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>echo $DISPLAY
localhost:14.0
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All non-comment content of /etc/ssh/ssh_config on my local machine (ssh client / X11 server)
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Host *
XAuthLocation /usr/bin/xauth
ForwardX11 yes
ForwardX11Trusted yes
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I believe the settings on the ssh server/X11 client machine are OK because I can use X11 forwarding on another windows machine with putty+Xming perfectly.
Does anyone know what is the problem? Thanks. |
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lowsfer
n00b
Joined: 06 Nov 2009
Posts: 42
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| Posted: Mon Jul 25, 2011 6:22 am Post subject: |
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Solved the problem finally!
It's the problem with vpn. I was using ssh over vpn. And it's a classic MTU problem. To solve it, excute
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ifconfig tun0 mtu 1350
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after making vpn connection. |
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Networking & Security
