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What will happen if i make changes in inittab ?

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Mohammed Haris Khan
Occasional Advisor

What will happen if i make changes in inittab ?

What will happen if I make changes in /etc/inittab file as below: The line to be edited in /etc/inittab file: a::ctrlaltdel:/sbin/shutdown -t3 -r now
After editing: a::ctrlaltdel:/bin/echo " disabled"
4 REPLIES
Michal Kapalka (mikap)
Honored Contributor
Solution

Re: What will happen if i make changes in inittab ?

hi,

if you like to disable CTRL+ALT+DEL,

them simply comment the line with #

mikap
Ivan Ferreira
Honored Contributor

Re: What will happen if i make changes in inittab ?

Probably is just better if you comment that line adding # at the beggining.

Also, you must run init q to refresh the configuration.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
Matti_Kurkela
Honored Contributor

Re: What will happen if i make changes in inittab ?

After making the change, you must run "init q", "telinit q" or reboot to make the change take effect.

After that, pressing ctrl-alt-del on the system's PC keyboard will produce the text " disabled" on whatever is the current /dev/console output device, instead of executing a controlled reboot.

This is a fairly common modification in setups where Windows and Linux servers are placed near each other, as Ctrl-Alt-Del is a standard part of login procedure in modern Windowses.

You might wish to use the \a escape syntax to make the system beep, to make the "you're typing on the wrong keyboard, silly!" more immediately obvious:

/bin/echo -e "\\a disabled"

MK
MK
Andrew Cowan
Honored Contributor

Re: What will happen if i make changes in inittab ?

Lines should be commented using the ":" not "#" in "/etc/inittab".