Hello, I have problems to start X-applications on a linux machine. Iam logging from my Linux pc via ssh on a remote Linux machine with my username/password. In this session I can start X-Application on remote PC(xclock for example) I have in sshd_config(remote linux machine) file following 2 parameters are defined as given below: X11Forwarding yes PermitRootLogin no When I execute su command(su -) and start xclock on the remote linux, then I get the following error: Error:Cannot open Display I also tried after executing "setenv DISPLAY pcxxxx:0" without success. I must say that when I login with "su -m" and then start xclock then it works. But then I donot have the correct path definition for root. Ex: PC1-------->PC2------->PC2 ssh su - with regards, Kumar ------------------------------------------------------------------ Padiyath Sreekumar | Tel: +41.56.310.3643 Paul Scherrer Institut | email: kumar.padiyath@xxxxxx AIT | Office: WHGA/U132 WHGA/U132 | Fax: +41.56.310.3649 CH-5232 Villigen PSI | Switzerland | ----------------------------------------------------------------- -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list