samba - Mar 2021 - Disable NETBIOS during "domain provision" or "domain join" (Samba 4 AD)

Hi Rowland,

thanks for the fast answer.

On 20.03.21 at 11:04 Rowland penny via samba wrote:
> Initially, I thought you were referring to the netbios domain name aka 
> workgroup, but it sounds like you are referring to the computers short
hostname.
> The 15 character limit on the hostname length is dictated by Active
Directory,
> so the cure for your problem is easy, stop using very long hostnames.
Actually I was half expecting this answer, but I was hoping there would be 
another way...
> sorry if this isn't what you wanted to hear, but it is something that
would
> happen on a Windows domain.
Understood, not samba's fault. :-)

But: Is the computer's shortname actually really needed? Or can the use of
the
short NETBios names be disabled?

Kind Regards,
Johannes

-- 
Johannes Kastl
Linux Consultant & Trainer
Tel.: +49 (0) 151 2372 5802
Mail: kastl at b1-systems.de

B1 Systems GmbH
Osterfeldstra?e 7 / 85088 Vohburg
http://www.b1-systems.de
GF: Ralph Dehner
Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537

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On 20/03/2021 10:12, Johannes Kastl via samba wrote:
> Hi Rowland,
>
>
> Understood, not samba's fault. :-)
>
> But: Is the computer's shortname actually really needed? Or can the 
> use of the short NETBios names be disabled?

Have you ever heard of DNS ?

If you don't have a Netbios Name in smb.conf, then how would all the AD 
domain members find each other ? (not that this really matters, if? 
'netbios name = computername' isn't there, Samba will add it for
you)

So, sorry, you MUST use short hostnames with 15 characters or less. If 
you really must have a long name, use a CNAME record that points to the 
Computers A record e.g. 'averyverylonghostname.domain.com' would be a 
CNAME for 'dc1.domain.com'. However your AD clients will usually default
to the A record.

Rowland