You want to access KDE software that is running on another computer.
Reasons can be
- someone is running Linux and requesting support from you
- you want to train a user how to work with a specific gui software
- you have worked on your desktop computer and want to continue work in front of the TV (Simpsons coming) on your notebook
You will need the software x11vnc. For example, to install x11vnc on SUSE Linux, open a Konsole and type
yast -i x11vnc
So let's assume you want to access a KDE desktop session of user on the computer user-desktop. Open a Konsole and do:
you@your-computer $ ssh user@user-desktop user@user-desktop $ export DISPLAY=:0 user@user-desktop $ x11vnc
The program x11vnc tells you where to connect. The line will read like
The VNC desktop is: user-desktop:0
Connect from your notebook:
you@your-computer $ vncviewer user-desktop:0
The "user-desktop" term may be the host name of the server machine if that name is configured in the "hosts" file on the client machine.