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SubjectRe: Linux-2.6.11 can't disable CAD
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On Thu, Apr 07, 2005 at 11:16:14AM -0400, Richard B. Johnson wrote:
> In the not-too distant past, one could disable Ctl-Alt-DEL.
> Can't do it anymore.
...
> Observe that reboot() returns 0 and `strace` understands what
> parameters were passed. The result is that, if I hit Ctl-Alt-Del,
> `init` will still execute the shutdown-order (INIT 0).

Actually, if CAD is enabled in the kernel, it will just reboot.
If CAD is disabled in the kernel a SIGINT is sent to pid 1 (/sbin/init).

So what you probably had in the not-too-distant past was a disabled CAD
in the kernel _and_ you had modified the following line in /etc/inittab,

# What to do when CTRL-ALT-DEL is pressed.
ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -r now

AFAIK this hasn't ever really changed.

Jan

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