Why Restart & Shutdown Buttons on login screen

[Mikkel L. Ellertson]

This thread has generated several questions. Let me see if I can 
answer a couple of them.

How do you stop Shutdown, Reboot, etc from being displayed at the 
login screen:

You can configure GDM (or the Display Manager of your choice) to 
display what you want. For GDM, you would look in /usr/share/gdm. I 
believe you would edit the defaults.conf file. You can use gdmsetup 
to control some of these things, but editing the setup file gives 
you finer control. You also have the option of choosing a theme that 
does not include them.

------------

How can you control the ability to run the shutdown, reboot, etc 
commands by users.

You can modify the file in /etc/security/console.apps to control 
what conditions must be met to run the command. In other words, you 
can change the defaults that let the console user run the commands 
to instead require the root password. (Or that the user be a member 
of a specif group, or other conditions.)

------------

One other thing to keep in mind - If you can get at the keyboard, 
the default action of hitting Ctrl-Alt-Delete is to run the shutdown 
command. If you want it to do something else, you need to edit 
/etc/inittab and change "ca::ctrlaltdel:/sbin/shutdown -t3 -r now" 
to what you want the system to do.

Mikkel
-- 

   Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!

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