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Hi everybody I'm running Ubuntu 12.04 and installed Debian 7 into a VM (standard install - SSH server, Desktop and system utils). Successfully ssh -X from the Ubuntu to the ...
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- 07-02-2013 #1
- Join Date
- Jul 2003
Issue with ssh and X11 forwarding
I'm running Ubuntu 12.04 and installed Debian 7 into a VM (standard install - SSH server, Desktop and system utils). Successfully ssh -X from the Ubuntu to the Debian VM, however when I try to start an X11 application (ex: xclock) I get the nasty error
connect /tmp/.X11-unix/X0: No such file or directory
Error: Can't open display: localhost:10.0
The "real" error is logged into /var/log/auth.log
sshd[xxxx]: channel x: open failed: administratively prohibited: open failed
I tried everything I could find online, but no luck
* Host (ubuntu machine)
* sshd_config ==> Added
* Forced ip v4
* No firewall running
Chain INPUT (policy ACCEPT)
Chain FORWARD (policy ACCEPT)
Chain OUTPUT (policy ACCEPT)
-e all on ssh and sshd
* apparmor is not installed
* selinux is not active, but libselinux1 is installed (cannot be removed, included in too many dependencies)
* export DISPLAY=0:0
* /etc/hosts.allow has ALL:ALL
The issue must be related to some authorization, maybe security config I cannot find.
Any idea from anybody?
- 07-02-2013 #2
- Join Date
- Jan 2005
- Saint Paul, MN
Are you passing the "-X" option when you "ssh" such as:
ssh -X username@hostname
The "export DISPLAY=0:0" says that you want to connect to the machine that you are remoting into's first display on screen 0 for that display. It is not used when you whant the display returning to your local machine.