Can't Open Display - X11 Forwarding - Cent OS

Solution 1:

Here (Red Hat Login required) is a Tech Brief article from a fellow Red Hat consultant which discusses the minimum packages needed for X-Windows to work for SSH connections.

The key points are:

1) Install the following:
xorg-x11-xauth
xorg-x11-fonts-*
xorg-x11-utils
2) Enable the following in the sshd_config file
X11Forwarding yes
3) Use an appropriate X-Server on your desktop

Solution 2:

Installed this package: xorg-x11-xauth

Got solution from here.

Thanks for your help!