On Mon, Jul 28, 2008 at 12:35:30PM -0700, Tomas L. Byrnes wrote:
As you pointed out, the protocol, if properly implemented, addresses this.
There should always be Glue (A records for the NS) in a delegation. RFC 1034 even specifies this:
4.2.2 <snip> As the last installation step, the delegation NS RRs and glue RRs necessary to make the delegation effective should be added to the parent zone. The administrators of both zones should insure that the NS and glue RRs which mark both sides of the cut are consistent and remain so. </snip>
A probably important distinction: That's not the protocol, that's the specified implementation framework of the protocol. In general, DNS still works if you screw that up, which is why it's so often screwed up. Cheers, -- jra -- Jay R. Ashworth Baylink jra@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com '87 e24 St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274 Those who cast the vote decide nothing. Those who count the vote decide everything. -- (Josef Stalin)