====== To change the screen saver mode ======

Our lab linux machines use an inhouse setup to do screen locking and auto-logout.  If you want a screen saver mode other than ??random?? here is what you do:

  - Look at the manual page for xlock and pick a mode you like.
  - Create a file in your home directory called .lockmode containing the name of the mode you want.

For example, if I wanted the mode called "space" which gives a moving star field I could get it by typing the following in a terminal:

  cat > ~/.lockmode
  space
``Cntrl+D``