[Samba] Inconsistent results while attempting to preset a computer with a one-time-password

[Dan Oriani]

Quoting Rowland Penny via samba <samba at lists.samba.org>:

> On Tue, 06 Feb 2018 14:09:08 -0500
> Dan Oriani via samba <samba at lists.samba.org> wrote:
>
>>
>> I'm not opposed to the idea. Does 'net ads join' support supplying
>> the machine name as the user, and the one-time-password given to it?
>> The only reason I'm using adcli at all is the preset-computer option
>> which I couldn't find an analogue to in 'net ads'.
>>
>>
>
> I have never tried this, but there is the 'createcomputer=OU' option:
>
> Precreate the computer account in a specific OU.
> The OU string read from top to bottom without RDNs
> and delimited by a '/'.
> E.g. "createcomputer=Computers/Servers/Unix"
> NB: A backslash '\' is used as escape at multiple
> levels and may need to be doubled or even
> quadrupled. It is not used as a separator.
>
> Rowland
>
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So I have the computer precreated in the OU. Lets call this host  
'ruby'. I also pass 'machinepass' so that it can join itself later (I  
think?). On 'ruby' I run 'net ads join', except it asks me for a  
password still. If I try to run 'net ads join -U RUBY$%onetimepass -v  
-d 5' it seems as if it tries to create the machine again, as in the  
logs I get 'machine account creation failed', then 'failed to  
precreate account in ou ....: Insufficient accesssigned SMB2 message'.  
Should I be specifying something else? The man page seems to suggest  
that if the machine already exists, it'll use that entry. Having 'net  
ads join' prompt me for a password is a no-go, as it brings me right  
back to manually doing this all by hand.