SOA and forwarders - Help for an exam please.

[Barry Margolin]

In article <blf2kr$191o$1 at sf1.isc.org>,
David Skilton <davidnospam at fareastpizza.com> wrote:
>I'm studying for a Networking exam and in one of my text books it makes the
>following statement :
>
>The root name server of a domain is the domain name server that acts as the
>Start of Authority for that zone. Moreover it is a server that forms the
>top-level server in your domain. As such, it contains the "." domain and
>thus can't be a forwarder. To resolve queries outside of your domain, you
>should set up a forwarder, which will eventually have a cache full of
>information. When a DNS server cannot resolve a query, it moves, (escalates)
>it up to a root server that is authoritive for a zone. The start of
>authority (SOA) record is the first record in the database.
>
>I don't understand why a top level server in my domain "contososo.com" can't
>be a forwarder even though it is the only DNS server in my domain. It's
>probably a simple answer, but I just don't quite get it......

That paragraph seems to be mixing up a number of concepts, and he doesn't
really seem to know what he's talking about.  Your confusion is due to the
fact that you seem to understand it better than him.

-- 
Barry Margolin, barry.margolin at level3.com
Level(3), Woburn, MA
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