NS record for the @ entry

[Edmund]

Thanks.  I now get a more clear understanding when looking at the
debug output from BIND.  The response packet for A type contains
all the SOA NS records and their corresponding A record in the
Authorative and Additional section.

Joseph S D Yao wrote:

> > Does anyone know why there must be a NS record for the @ entry ?
> > As my understanding, the NS record is pointing to the local machine
> > and it is the local machine the SOA for this zone, so why is the NS
> > record still necessary for the @ entry ???
>
> The NS records point to the local machine AND all other name servers.
> So, you get ALL of the name servers when you pull down the records in
> the zone file.  Also, IIRC, a zone transfer from "master" to "slave"
> needs NS records to be legit.  [I don't have time to check the code for
> this.]
>
> --
> Joe Yao                         jsdy at cospo.osis.gov - Joseph S. D. Yao
> COSPO/OSIS Computer Support                                     EMT-B
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