Delegation of Reverse Zones

Sergey · Guest

Hi.
I am trying to figure out Delegations of reverse lookup zones. I think that
I got delegations of forward lookup zones right. Correct me if I am wrong:
If you need to delegate a zone, you will setup a zone (to be delegated) on
Server2, and you will setup delegation on Server1. That will add NS record of
Server2 as server authoritative for the new (delegated) zone to Server1, and
it will create an A (glue) record that will be used to resolve Server2's IP
at Server1.
So Server1 will direct all requests for resolution of hosts located in the
new zone to Server2, where the actual resolution will take place.
Assuming this is correct.
I cant figure out how delegation of reverse zones works.
The book (MS Press) says: "...to configure a DNS server named ns.contoso.com
to delegate to another server named ns1.contoso.com reverse lookups of the
address space 192.168.1.0/24, you would configure a zone named
0.1.168.192.in-addr.arpa on ns.contoso.com and add an NS record to perform
the delegation. The NS record would adopt the following format: 0/24 NS
ns1.contoso.com...."

Now in this scenario. Where does the actual resolution happen? Seems that
resolution happens on ns1.contoso.com. But I never created/configured any
zones on ns1.contoso.com. How can it resolve anything?

And if resolution happens on ns.contoso.com, how will the ns1.contoso.com
know to direct queries to be resolved on ns.contoso.com if I never created
any records on ns1.contoso.com like "NS" or "A" records.

Asking for help. Thanks in advance.

Wayne McGlinn · Guest

"Sergey" <Sergey@discussions.microsoft.com> wrote in message
news:171DE3BB-3C15-41A9-A82D-3E4D81428357@microsoft.com...

Sergey · Guest

Thanks for your reply. That article is pretty self explainatory. I think that
I am starting to get it.
In the meantime I am now unsure of my understanding of forward delegations:
Is it right that:
1) In delegations "Parent" is the server on which delegation is created, and
"Child" is the server which holds the zone and performs resolution?
So if I had delegated a part of a namespace to server2(child), I would setup
delegation on server1(parent), and that delegation would only have (NS) and
(A) records to point to server2?
2) Parent does not direct queries from DNS clients to the Child,(to be
resolved by the child), but instead, provides clients with refferals for
iteration?

Anybody?

"Wayne McGlinn" wrote: