AD Zones and DNS SOA records

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    Hi All,

    I am currently in a Microsoft Course looking at Active Directory zones in DNS….

    My question, and one that seems to be confusing everyone is:

    With an Active Directory intergrated DNS zone, hosted on multiple Domain Controllers, should there be a ‘Single’ authoritative Server or Multiple.

    basically, each of my DC’s has an SOA record for the Zone that states itself as the Primary name server for that zone. Now i think this is correct, it gives fault tolerance etc.

    Others think there should be only one Primary name server, and that the SOA record on each server should point to THAT server.

    Anyone have any thoughts (or access to an AD zone to check!)

    It previous installs, say with 5 DC’s all hosting an AD Zone, i have seen that each DC has an SOA record with itself as the Primary.

    Now, with STANDARD zones, it makes sense that you only have one primary, but i thought AD zones removed this weak link….

    Any info on the subject would be much appreciated!



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