Ubuntu

shutdown ubuntu 16.04 from remote: "Interactive Authentication Required"

Asked by smurf

I have a pc with Ubuntu 16.04 working fine.
Now I have prepared the system with WOL to power on from remote (normally from my android phone) and it works fine from LAN and from WAN. I've a bunch of reasons to do this instead of keep it on 24/24.
The last step should be to shutdown the system from remote, I use an android ssh client that log easily into my ubuntu box, but if I give the command "shutdown -h 0" I receive the message:

Interactive authentication required

From local command line I can shutdown the system without sudo.

I understand that this is a security policy, but in my case I wish to override this policy, I'm the only user of the pc.

Is it possible?

Thanks a lot.

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smurf
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smurf (luca-dgh) said : 		#1

Nobody can answer my question?

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smurf (luca-dgh) said : 		#2

I found the trick.

I added this line to sudoers:

user_id ALL=(ALL:ALL) NOPASSWD: /sbin/shutdown

now I have to invoke sudo shutdown from remote, but no password is asked.

I think that the error message is not very clear, quite ambiguous.