from pc1 as user1, the shutdown command doesn't cause any problems, but if I try to use it remotely on pc2 as user2 using the ssh protocol, it doesn't work: it requires authentication and then it works.
:~$ /usr/sbin/shutdown -r 0
Failed to schedule shutdown: Interactive authentication required.
~# /usr/sbin/shutdown -r 60
Reboot scheduled for Sat 2024-01-06 11:01:36 CET, use 'shutdown -c' to cancel.
~$ ls -l /usr/sbin/shutdown lrwxrwxrwx 1 root root 14 8 févr. 2023 /usr/sbin/shutdown -> /bin/systemctl
further details:
- from pc1 as user1 this command doesn't need "sudo".
How can I explain this behavior?
