How to disable Ctrl-Alt-Del in RHEL7 ?

Solution Verified - Updated -

Issue

  • On RHEL7, /etc/init/control-alt-delete.override no more working to override key combination, how to disable the Ctrl-Alt-Del in RHEL7 ?
  • How to disable Ctrl-Alt-Del in RHEL7 using GUI ?

Environment

  • Red Hat Enterprise Linux 7
  • systemd

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