Delegation of Authority

[Stephane Bortzmeyer]

On Wed, Jun 02, 2004 at 01:08:01PM +0000,
 Joel <jc517 at wmi.com> wrote 
 a message of 27 lines which said:

> I'm authoritative for wmi.com but not lpx.wmi.com. I want to
> delegate that to another machine. I could not get it to work until I
> added the empty forwarders declaration.

Strange. The delegation was probably broken in some way and the
forwarder was unable to reach the name servers of the delegated
zone. RFC 1918 addresses? IP filtering?

> Does being authoritative for wmi.com mean you are also authoritative
> for any subdomains you don't explicitly delegate to someone else?

Yes.

> I was snooping packets and anytime I'd look up something in the
> lpx.wmi.com subdomain it was sent to the forwarder.

Which seems perfectly sensible. Any request for which your name server
is not authoritative for is sent to the forwarder.