need help with child subdomains and zone transfers

[Barry Margolin]

In article <000901bf9a6a$185ca980$61360fc2 at laptop.eiec.org>,
Duane Cox <dcox at coxnetwork.com> wrote:
>
>Hello
>
>I need some help with setting up some child subdomains.. please :)
>
>I have nameservers ns1.illicom.net and ns2.illicom.net, and the zone
>files in question are illicom.net and paxton.illicom.net.
>
>I want my provider to do zone transfers on the zone illicom.net... no
>problem, I understand how to do that part
>but paxton.illicom.net is its own zone file and really is not tied with
>illicom.net, BUT correct me if I am wrong...
>
>If at&t does a zone transfer on illicom.net and and at&t server is listed
>as a slave for that zone (illicom.net), and if someone in the world
>is using that slave (at&t's)... potentially if that person was to try to
>access paxton.illicom.net, which would result in illicom.net looked up
>first on that slave, then they would NOT be able to access any hosts in
>the paxton.illicom.net child subdomain... ??
>Reason for this logic is that illicom.net does not include any record to
>paxton.illicom.net  .. so what should I do here ? create an NS and A
>record
>for paxton.illicom.net in the illicom.net subdomain??

The illicom.net zone should contain NS records that delegate the
paxton.illicom.net subdomain to the appropriate servers.  When someone
queries the AT&T server for a name in paxton.illicom.net, the AT&T server
will send them the NS records, and the querier will then ask one of those
nameservers.

If the master server for illicom.net is also a master or slave server for
paxton.illicom.net it will automatically incorporate the NS records that
are in the paxton.illicom.net zone file into zone transfers of the
illicom.net zone.  However, for consistency you should enter the NS records
there explicitly.

-- 
Barry Margolin, barmar at bbnplanet.com
GTE Internetworking, Powered by BBN, Burlington, MA
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