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31.2. Disabling Console Program Access
To disable access by users to console programs, run the following command as root:
rm -f /etc/security/console.apps/*
In environments where the console is otherwise secured (BIOS and boot loader passwords are set, Ctrl+Alt+Delete is disabled, the power and reset switches are disabled, and so forth), you may not want to allow any user at the console to run
poweroff, halt, and reboot, which are accessible from the console by default.
To disable these abilities, run the following commands as root:
rm -f /etc/security/console.apps/poweroffrm -f /etc/security/console.apps/haltrm -f /etc/security/console.apps/reboot
