Using X-Window System from a remote system

When using X-Window System from a remote system, for example, to access the Configuration Tool, you must set up the DISPLAY environment variable to allow the application to display its windows on that system.

On the display system (that is the one that will display the windows), enter the command:
xhost +appl
where appl is the network name of the system being used to run the application.
On the application system, before you run the application, enter the command:
export DISPLAY=disp:0.0
where disp is the host name or IP address of the system where the windows will be displayed (followed by a colon and the display id—normally 0.0). The application windows are then displayed on the disp system.