Half a Page of Scribbled Linux

For users sharing a computer, it's nice to allow two people to be logged in to their X desktop at the same time. You can change to the first session with Ctrl-Alt-F7 and the second with Ctrl-Alt-F8. I had this set up in Red Hat 9 but the upgrade to Fedora Core disabled it. The setting is in file /etc/X11/gdm/gdm.conf. The upgrade renamed this file gdm.conf.rpmsave and created a new one with default settings. All you have to do is find the [servers] section and uncomment the line
# 1=Standard
Then kick GDM (as root) with
kill -USR1 `cat /var/run/gdm.pid`
After you log out, GDM will restart with two sessions.