[Samba] Shutting down a remote PC via "net rpc"

[Michael Howard]

On 16/12/2020 09:55, Stefan G. Weichinger via samba wrote:
> Am 14.12.20 um 19:17 schrieb Stefan G. Weichinger via samba:
>>
>>
>> customer runs a Windows 2019 DC in Subnet 192.168.0.0/24, Domain 
>> "ourdom"
>>
>> -
>>
>> Samba 4.9.5-Debian as domain member, in same subnet. Works fine.
>>
>> -
>>
>> The kid's PC is domain member in a separate VLAN "kids" ;-)
>>
>> The wish: a cron job should shut down that kids PC every 5 minutes 
>> between X and Y o'clock.
>>
>> The following bash script failed with "could not initialise pipe 
>> \winreg. Error was NT_STATUS_OBJECT_NAME_NOT_FOUND"
>>
>> while the same command *worked* when executed in the shell.
>>
>> I now enforced the "Remote Registry" service on the kids PC.
>>
>> when I run it via bash script:
>>
>> "Shutdown of remote machine failed"
>>
>> 5 seconds later as shell command:
>>
>> "Shutdown of remote machine succeeded"
>>
>> Any ideas, why? Why not?
>>
>> login shell vs. non-login shell?
>> env variables?
>>
>> I am also happy if anyone points me to something more modern or elegant:
>>
>> define it in a GPO on the DC  ... or anything like that.
>>
>> -> script:
>>
>> # cat pc_shutdown_schedule.sh
>>
>> #!/bin/bash
>>
>>
>>
>> net rpc shutdown -C "PC-Zeit ist von Montag bis Freitag von 16.00 Uhr 
>> bis 18.30 Uhr. Am Wochenende von 9.00-11.00 und von 17.00 bis 18.30 
>> Uhr. PC f�hrt in wenigen Sekunden herunter." -t 60 -f -I 192.168.3.99 
>> -U 'administrator%Something67//' -W ourdom
>
> *bump*
>
>
>

net rpc shutdown -C "MESSAGE" -t 60 -f -I HOSTNAME 
-UAdministrator%'PASSWORD' -W DOMAIN

Works for me here from the command line, from a bash script and the same 
script from cron. The tested PC is Windows 10 Ent. The only quoting used 
is on the password as it contains a pipe sign, amongst other non 
alphabetics.

Mike.

-- 
Michael Howard