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

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

Hi Rowland,

On 20.03.21 at 12:41 Rowland penny via samba wrote:
> On 20/03/2021 10:12, Johannes Kastl via samba wrote:
>> 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 ?
That is exactly why I was asking. Because I have two DNS entries for the DC, one
with the long hostname and one with the "netbios name". Those are
created during
domain provisioning. So if there is already a A record for the long name, what 
use is the short name?

But if this is needed for AD to work properly, then so be it.

I guess this also answers my third question, it seems there is no way to set the
netbios name during provisioning/join.

Thanks for your help, Rowland!

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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I recommend you read this : 
https://docs.microsoft.com/en-us/troubleshoot/windows-server/identity/naming-conventions-for-computer-domain-site-ou


Greetz, 

louis


> -----Oorspronkelijk bericht-----
> Van: samba [mailto:samba-bounces at lists.samba.org] Namens Johannes Kastl
> via samba
> Verzonden: zaterdag 20 maart 2021 13:25
> Aan: samba at lists.samba.org
> Onderwerp: Re: [Samba] Disable NETBIOS during "domain provision"
or
> "domain join" (Samba 4 AD)
> 
> Hi Rowland,
> 
> On 20.03.21 at 12:41 Rowland penny via samba wrote:
> > On 20/03/2021 10:12, Johannes Kastl via samba wrote:
> 
> >> 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 ?
> 
> That is exactly why I was asking. Because I have two DNS entries for the
> DC, one
> with the long hostname and one with the "netbios name". Those are
created
> during
> domain provisioning. So if there is already a A record for the long name,
> what
> use is the short name?
> 
> But if this is needed for AD to work properly, then so be it.
> 
> I guess this also answers my third question, it seems there is no way to
> set the
> netbios name during provisioning/join.
> 
> Thanks for your help, Rowland!
> 
> 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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