The firewall shouldn't have to allow X connections if he's tunneling back through SSH...that's one of the main points of SSH tunneling. Additionally, the display variable appears to have been set, as evidenced by the "localhost:0.0" error. One thing to check on the remote system, in /etc/ssh/sshd_config, is for the presence of: X11Forwarding yes in order to ensure that the SSH daemon is allowing X11 forwarding. The default setting is "no". If it is not set, then Joy would need to modify the sshd_config and then restart sshd (or have both done for him by the remote server's admin). Also, OpenSSH's default offset is 10, rather than 0...so, usually, the display variable would read as "localhost:10.0" rather than "localhost:0.0"...that may need to be investigated in the sshd_config, as well. > You're running an X application from remote? Did you set your display > environment variables to point back to the machine your working from? > Does the firewall allow X connections? > > -----Original Message----- > From: redhat-list-bounces@xxxxxxxxxx > [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Joy Methew > Sent: Friday, August 06, 2010 2:44 AM > To: General Red Hat Linux discussion list > Subject: EXTERNAL:firefox > > hello all, > i have centos system remotely. i login there via ssh > -X > server ip. > i am trying run firefox there it`s showing some error like that. > > Xlib: connection to ":0.0" refused by server > Xlib: No protocol specified > > Xlib: connection to ":0.0" refused by server > Xlib: No protocol specified > > Error: cannot open display: :0.0 > > any suggestion...it`s urgent. > > thanks > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- Mike Burger http://www.bubbanfriends.org Visit the Dog Pound II BBS telnet://dogpound2.citadel.org or http://dogpound2.citadel.org To be notified of updates to the web site, visit: https://www.bubbanfriends.org/mailman/listinfo/site-update or send a blank email message to: site-update-subscribe@xxxxxxxxxxxxxxxxx -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
