A display manager presents users with a login session that is graphical from start to finish.
It is an X application, and it uses the X server
to create the familiar Red Hat graphical login screen. Click on the thumbnail of the image to see the full screen.
is highly configurable, and the
stores many of the configurable options.
Sections divide this file into logical units, and each section configures a single piece of
For example, the section labeled
configures the login window displayed when gdm waits for a user to log in.
In this section, you can configure the greeting message, select an option to have the screen "quiver" when authentication fails,
display a user browser
and many more features
The following simulation allows you to practice setting several options in the
file and to see the results.
Gnome Configuration Options
The next lesson explains the need for a window manager to get the most out of X.