Linked by Thom Holwerda on Mon 12th Dec 2005 15:38 UTC
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> So you say Ctrl+C is trappable, what about
> Ctrl+Alt+Backspace, which logs the user out of
> their current session? If one were really paranoid
> they could do that before every Linux login.
It can't be trapped because it is not an OS signal like SIGINT (Ctrl-C) is. It can be disabled in the X config file with the "DontZap" option. That does require root access of course, but many public terminals (such as those in University computer labs) do have the DontZap option in the X config file because they don't want normal users to be able to kill the X server (which would be rather nasty if remote users were using X applications on that system.)







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So you say Ctrl+C is trappable, what about Ctrl+Alt+Backspace, which logs the user out of their current session? If one were really paranoid they could do that before every Linux login.
I don't see how touting Ctrl+Alt+Del from Windows is all that great, it's just pressing extra keystrokes, which I believe Ctrl+Alt+Backspace will replicate fine on Linux. Let me know if it is trappable though.