Do you have any of your systems running on Linux? Then you should read this article. We know the “Alt+Ctl+Del” in Windows is to lock and unlock the desktop. In linux, it is by default to reboot the system “without warning”!!!

If you have a production system running and someone by mistake connects a keyboard to the system and execute the Alt+Ctl+Del command, the system will reboot and they need not login to the system. Many of the PeopleSoft administrators do not know about it, unless they worked as system administrators.

By default it is set to shutdown with the option –t3 –r now. The setting is in /etc/inittab file as below:

# Trap CTRL-ALT-DELETE
ca::ctrlaltdel:/sbin/shutdown -t3 -r now

To disable the system to reboot when Alt+Ctl+Del command is executed, comment the line starting with ca:: or replace it with something else which does not execute this shutdown command.

Comments (3)

	1. 02-10-2009 15:02
	Can you provide the command that I should provide in place of the shutdown command? Guest

Gab

	2. 02-12-2009 12:13
	You can change it to:    ca::ctrlaltdel:init q;    or just comment it:  #ca::ctrlaltdel: http://psadmin.org Registered

RD

	3. 02-18-2009 06:09
	Thanks. Guest

Gab

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