Ubuntu Linux Disable control-alt-delete [CTRL-ALT-DEL] Emergency Keypress Handling

Posted on in Categories , , last updated August 20, 2008

Q. How do I delete control-alt-delete emergency keypress handling to improve security of my Ubuntu Linux server?

A. When you hit the Control-Alt-Delete key combination system get rebooted. This operation is controlled via a special file located at /etc/event.d/control-alt-delete directory. Simply open this file using a text editor:
$ sudo vi /etc/event.d/control-alt-delete
OR
$ sudo gedit /etc/event.d/control-alt-delete
Find line that read as follows:
exec /sbin/shutdown -r now "Control-Alt-Delete pressed"
delete configuration line or comment out line by prefixing # symob:
#exec /sbin/shutdown -r now "Control-Alt-Delete pressed"
Save and close the file.

Posted by: Vivek Gite

The author is the creator of nixCraft and a seasoned sysadmin and a trainer for the Linux operating system/Unix shell scripting. He has worked with global clients and in various industries, including IT, education, defense and space research, and the nonprofit sector. Follow him on Twitter, Facebook, Google+.

4 comment

  1. Hi,
    If anyone helps me to clear this doubt, I will be grateful to them…….

    How to make my USB hard disk mount on my ubuntu machine(all) and copy those files onto the local hard drive……Please help

    Thank You

    Bala

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