[Samba] Bind_DLZ and two AD DC

Bob of Donelson Trophy bob at donelsontrophy.net
Fri Oct 21 18:54:46 UTC 2016

On 2016-10-21 13:40, Rowland Penny via samba wrote:

> On Fri, 21 Oct 2016 13:26:28 -0500
> Bob of Donelson Trophy via samba <samba at lists.samba.org> wrote:
>> My first Active Directory setup had two DC's and shortly after getting
>> things going the second DC created a hardware failure issue and I just
>> continued life with one DC. 
>> Now, while upgrading I am returning to two DC's. 
>> In a normal Bind9 "master and slave" setup the master always "feeds"
>> the slave. 
>> With Bind9_DLZ setup (recommended to be used with Samba4) there is no
>> "master and slave" setup. This "master and slave" configuration is NOT
>> recommended for use in our (Samba4) situations and/or a Bind9_DLZ
>> configuration. 
>> How does Bind9_DLZ "keep up" with each other (in a two AD DC
>> environment) when one of the DC's go "off line"? The second DC
>> continues to maintain the connections. When the first DC returns, how
>> does it "catch up" so to speak? 
>> Probably been asked many, many times but I am finding conflicting
>> info. 
>> A brief explanation would be appreciated?
> Hi Bob, Bind9_DLZ doesn't 'keep up' with each other, AD does ;-)
> All the dns records are stored in AD and the dns doesn't work in 'master
> and slave', it works in 'Multi-master'.
> Try reading these:
> https://technet.microsoft.com/en-gb/library/cc959306.aspx
> https://technet.microsoft.com/en-gb/library/cc759550%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396
> Rowland

Thanks Rowland.


Bob Wooden of Donelson Trophy

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