Configuring a domain slave to look up subdomain hosts

[Mark Andrews]

Stub zones record the NS list and associated address records for
the zone.  Think of it as pre-populating the cache.

Forwarder clauses override the normal recusive resolution process.
A empty forwarders clause disables the override for names at or
below the "zone" it appears in.

These are independent configuration options.   If you want to stop
forwarding for a namespace you have to explicitly stop doing it.

zone sub.example.net {
	type stub;
	masters { 1.2.3.4; };
	file "sub.example.net.stub";
	forwarders { /*empty */ };
};

The primary use of stub zones is to graft on namespace that isn't
to be found by following delegations.

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org