[Samba] adding Windows client reverse dns entries

Bob of Donelson Trophy bob at donelsontrophy.net
Mon Nov 7 14:07:21 UTC 2016

On 2016-11-07 03:06, Rowland Penny via samba wrote:

> On Mon, 7 Nov 2016 09:51:50 +0100
> "L.P.H. van Belle via samba" <samba at lists.samba.org> wrote:
> I thought the W clients (both W7 and W10) reverse dns PTR records 
> where added by the ADDC automatically.

Yes, correct if your setup is correct then yes this works. 
With a default windows install and with a few GPO changes.

> Early samba4 versions does not support (or have a buggy support)
> for auto->register PTR recors, as far i remember.
 I use windows to let it register and update its own record. 

My setup. 
Samba 4.4.5, win7 64b/win10 64b. 
Static and dhcp ips. ( dhcp is not linked to the samba DC ) 

I did set in the gpo, in network/DNS client.  ( computer policy )
The connections specific DNS suffix. 
Enable dynamic update. 
Primay DNS suffic 
Register PTR. 



It is the last one 'Register PTR' that is updating your PTR records, it
is analogous to ticking the 'Use this connection's DNS suffix in DNS
registration' box in a machines 'Advanced TCP/IP Settings.

Out of the box, windows machines do not update their reverse records.


Yesterday I discovered that I had a hardware issue that was not allowing
one W10 machine to create it's PTR record. All other W10 client and one
W7 client work fine. 

Time for a machine retirement. Sometimes hardware dies . . slowly and

Thanks for everyone help and suggestions.


Bob Wooden of Donelson Trophy

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