Graphical Environment Guide
Chapter 4, Running remote programs
Step 2: Configuring scologin

Step 2: Configuring scologin

The X server authorization protocol is only used if you log in through the display manager, scologin. scologin must be configured to run your X server with the authorization protocol. The authorization protocol is not used if you start the X server by running startx(X), xinit(X), or Xsco(X).

To configure scologin for authorization, you must edit the /usr/lib/X11/scologin/Xconfig file. However, if scologin is already running on your system, you must stop it before you edit the Xconfig file. As root, use the scologin administration script to do this:

/etc/scologin stop

NOTE: This script shuts down all scologin processes on your system, which results in the closure of any Graphical Environment sessions running at that time. You should notify users before you actually stop scologin.

Now you can edit the /usr/lib/X11/scologin/Xconfig file and verify that the scologin authorize resource is set to true. If this resource specification is not yet defined, add the following line to the Xconfig file:

DisplayManager*authorize: true

or

DisplayManager*displayname*authorize: true

In almost all circumstances, the first resource specification is suitable. Only use the latter syntax if you want specific X servers to use the magic cookie protocol. For details on setting scologin configuration resources, see the scologin(XC) manual page.

If you want to authorize access for a display other than the one scologin manages by default (/dev/tty02), modify the /usr/lib/X11/scologin/Xservers file to configure the desired X server and tty on which you want the server to run. See ``Running scologin with the Xservers file'' for information on how to do this.

Now you can start scologin, using the scologin administration script. As root, run the following command:

/etc/scologin start

If you want to store your authorization records in a file other than $HOME/.Xauthority, add a line to your .login file that sets the $XAUTHORITY environment variable to the desired filename.