On Wed, Mar 06, 2019 at 02:24:59PM -0700, Bill Stewart wrote:
...
> For my part, I'm writing a PowerShell script that does the following:
>
> 1) Create a local user account
> 2) Grant it SeBatchLogonRight
> 3) Create a scheduled task for it
Powershell is probably more elegant if you're familiar with it, but I
found this bash sequence that does the trick:
-----
PW=`dd if=/dev/random bs=15 count=1 | base 64`
net user s4udummy /add
net user s4udummy $PW
wmic USERACCOUNT WHERE NAME=\'s4udummy\' SET PasswordExpires=FALSE
/usr/bin/editrights -u s4udummy -a SeBatchLogonRight
schtasks /create /tn wake-s4u /sc ONSTART /ru s4udummy /rp $PW \
/tr '"$SYSTEMROOT"\\System32\\cmd.exe /c exit'
sc config cron depend= Schedule
-----
I added the last statement, to make cron dependent on the Task Scheduler,
because my crontabs use '@reboot' and I am worried about cron trying
to spawn an important job before the Task Scheduler has a chance to
fix seteuid().
The dependency isn't logically sufficient as wake-s4u job needs some
time to finish. But its working so far. I can configure cron to start
with a delay should Task Scheduler ever lose the race.
Thanks everyone for quick attention to this problem and the workaround!
--Stephen
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