I keep getting the error "Error Can't open display: workstation1" whenever I try to run an X display via something like xclock. I have a RHEL 5 server with SE Linux turned off. I am trying to display X to a remote client workstation that is running RHEL 5 WS. I have "xhost +"ed the workstation and I have issued the command, "export DISPLAY=workstation1:0.0" . I have ssh'd into the server with and without the -X option. Either way, I get the "Warning: no auth data" warning. I have used the "gdmsetup" command on the server to allow X forwarding and I have confirmed this in the /etc/sshd/sshd_config file; "X11Forwarding yes". I did a netstat and confirmed that tcp port 6000 is open and running Xorg. My firewalls are turned off. What else am I missing?