[105214] in North American Network Operators' Group
Re: DNS problems to RoadRunner - tcp vs udp
daemon@ATHENA.MIT.EDU (Florian Weimer)
Sun Jun 15 04:20:31 2008
From: Florian Weimer <fw@deneb.enyo.de>
To: Sean Donelan <sean@donelan.com>
Date: Sun, 15 Jun 2008 10:19:56 +0200
In-Reply-To: <Pine.GSO.4.64.0806141900340.574@clifden.donelan.com> (Sean
Donelan's message of "Sat, 14 Jun 2008 19:43:46 -0400 (EDT)")
Cc: nanog@merit.edu
Errors-To: nanog-bounces@nanog.org
* Sean Donelan:
> Any network with a large user population probably should have separate
> DNS servers for their authoritative zones answering the Internet
> at-large and their recursive resolvers serving their user population.
It's not so much a question of network size. You absolutely must use
different views if you host DNS for customer domains because there is a
race conidtion in the delegation provisioning protocol used by most TLDs
(you need to add the domain before you receive the delegation).