I have a laptop with Ubuntu 16.06. I am able to execute reboot command as a non-root user without sudo. How can I change this behaviour so that I am not able to run reboot without sudo? I tried checking where reboot actually points:user:~$ which reboot/sbin/rebootuser:/sbin$ ls -l rebootreboot -> /bin/systemctlBut I do not know how to change systemctl behaviour.
Make reboot work only with sudo
ubuntu;sudo;reboot