LinuxPower: Remote X

This page is going to help you run X programs on another
computer, but display it on your X session. This is especially
helpful if you have a slow machine on your LAN or want to display X
applications on a Windows machine.

“On your client side (the computer you want to display and use
the program) you need something that allows the display of X
programs. On a Linux/Unix machine you’ll probably just need to have
something like XFree86 or MetroX; any standard X server will do, as
long as it displays and starts up fine on your computer. If it’s a
Windows machine, you need to download an X server. Two that I know
of are XWin32 and MI/X. You can look for more at Tucows, under
server daemons, I think.”