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List:       cifs-protocol
Subject:    Re: [cifs-protocol] MS-ADTS: DC handling of modification to msDS-AdditionalDnsHostName [120061624003
From:       Isaac Boukris via cifs-protocol <cifs-protocol () lists ! samba ! org>
Date:       2020-06-22 18:46:51
Message-ID: CAC-fF8SPo7ETT8-DLinoOkwtT6ZWSAhOt+Pat_Oz4jLOY3VmqA () mail ! gmail ! com
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Hi Obaid:

The simplest is to add an attribute via ADSI interface, save and refresh.

Or perhaps more appropriate:
netdom computername cname /add:x.y.z

And then check the values of msDS-AdditionalDnsHostName.

Thanks

On Mon, Jun 22, 2020 at 8:28 PM Obaid Farooqi <obaidf@microsoft.com> wrote:
> 
> Hi Isaac:
> Is there an easy wasy to reproduce this? It appears that joing a computer to a \
> domain will trigger this but I am not sure if the creation of a computer object \
> always results in creation of this attribute. 
> Regards,
> Obaid Farooqi
> Escalatiion Engineer | Microsoft
> 
> -----Original Message-----
> From: Obaid Farooqi
> Sent: Tuesday, June 16, 2020 11:10 AM
> To: Isaac Boukris <iboukris@gmail.com>; Stefan Metzmacher <metze@samba.org>; \
>                 Andreas Schneider <asn@samba.org>; cifs-protocol@lists.samba.org
> Cc: support <support@mail.support.microsoft.com>
> Subject: RE: MS-ADTS: DC handling of modification to msDS-AdditionalDnsHostName \
> [120061624003212] 
> Hi Isaac:
> Thanks for contacting Microsoft. I have created a case to track this issue. A \
> member of the open specifications team will be in touch soon. 
> Regards,
> Obaid Farooqi
> Escalatiion Engineer | Microsoft
> 
> -----Original Message-----
> From: Isaac Boukris <iboukris@gmail.com>
> Sent: Tuesday, June 16, 2020 5:45 AM
> To: Interoperability Documentation Help <dochelp@microsoft.com>; Stefan Metzmacher \
>                 <metze@samba.org>; Andreas Schneider <asn@samba.org>; \
>                 cifs-protocol@lists.samba.org
> Subject: [EXTERNAL] MS-ADTS: DC handling of modification to \
> msDS-AdditionalDnsHostName 
> Hello dochelp,
> 
> I noticed that each time an msDS-AdditionalDnsHostName attribute is added to a \
> computer object (netdom/adsi/ldapmodify), Windows DC also adds another short entry \
> (up to the first dot if any) with a binary '\0$' suffix. This causes \
> ldap_get_values() to fail parsing it as a string, and ldap_get_values_len() needs \
> to be used instead. 
> Looking in the docs I couldn't find any mention for this handling, and wonder if \
> the '\0$' is in purpose or a bug, and how it should be handled by implementations. 
> Thank you

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