cyberz.org » X11 http://www.cyberz.org/blog Andrea Leofreddi's homepage Tue, 10 Aug 2010 17:19:43 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 SSH X11 forwarding issue http://www.cyberz.org/blog/2008/04/12/ssh-x11-forwarding-issue/ http://www.cyberz.org/blog/2008/04/12/ssh-x11-forwarding-issue/#comments Sat, 12 Apr 2008 21:38:53 +0000 andrea http://www.cyberz.org/blog/2008/04/12/ssh-x11-forwarding-issue/ Recently I’ve been in an awkward situation with ssh and X11 forwarding, where ssh using the classic -Y (or -X) switch wasn’t working (DISPLAY was not set):

[andrea@duncan ~]$ ssh -Y root@thufir
root@thufir's password:
Last login: Sat Apr 12 23:30:09 2008 from ***
[root@thufir ~]# echo $DISPLAY
[root@thufir ~]#

If you are experiencing the same and your sshd_config looks fine (which means TCP and X11 forwarding is already enabled) then the answer is missing xauth!

On RedHat yum install xauth will do the trick

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