Subject: Re: DEPLOY: DNS Record Types

From: Jonathan de Boyne Pollard <[email-masked]>
Date: Mon, 13 Sep 2004 18:39:06 +0100

The DNS resolver APIs on all Microsoft OS's don't let you query for an unknown record type.

Rubbish.

Even if you write your own DNS resolver code, if you're behind a firewall created by Microsoft ISA Server, you usually can't successfully send and receive a query for a new record type.

If one is behind certain makes and models of firewalls, one cannot use
EDNS, too.  Yet RFC 2671 has made it on to the standards track.