Linux Disable Ctrl+Alt+Delete

Ctrl+ALT+Delete is the FIRST ACTION for Windows (get logon screen & login)
Ctrl+ALT+Delete is the LAST ACTION for Linux ( reboot the system )

Especially at virtual environments having Windows & Linux together ( e,g: VMWARE )
This can be a problem.

Due to slow network responses etc, user may select Linux instead of Windows by mistake.
Ctrl+alt+Delete to login Windows may reboot Linux server.

Our company policy always disabled Ctrl+Alt+Delete for Linux reboot

You can examine below Red Hat articles


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How to change or disable the "Ctrl+Alt+Del" behaviour in GNOME Desktop on Red Hat Enterprise Linux system? 

     https://access.redhat.com/solutions/1414683 

How to disable Ctrl+Alt+Del causing system reboot in Red Hat Enterprise Linux 6 

     https://access.redhat.com/solutions/449373