linux：systemd 禁用ctrl-alt-del：centos、rhel、fedora、ubuntu

 

systemctl status ctrl-alt-del.target ; systemctl mask ctrl-alt-del.target ; systemctl status ctrl-alt-del.target ; history -c

systemctl status ctrl-alt-del.target ; systemctl mask ctrl-alt-del.target ; systemctl status ctrl-alt-del.target ; history -c

systemctl status ctrl-alt-del.target ; systemctl mask ctrl-alt-del.target ; systemctl status ctrl-alt-del.target ; history -c