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5. Requiring root permission for shutdown

The default for the shutdown button on the login box allows anyone to use it to shutdown the system. The section in /usr/share/config/kdmrc controlling who may use this button looks like this:


#ShutdownButton=RootOnly
ShutdownButton=ConsoleOnly 

To enable only the root user to shutdown the system, change the lines as shown below:


ShutdownButton=RootOnly
#ShutdownButton=ConsoleOnly

Clicking the shutdown button will now prompt for the root password before shutting down the system.


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