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Re: [DNSOP] RFC 1035 vs. mandatory NS at apex?

Ted Lemon <mellon@fugue.com> Thu, 07 February 2019 14:40 UTC

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From: Ted Lemon <mellon@fugue.com>
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Date: Thu, 07 Feb 2019 09:40:24 -0500
In-Reply-To: <alpine.DEB.2.20.1902071407530.18720@grey.csi.cam.ac.uk>
Cc: Petr Špaček <petr.spacek@nic.cz>, "dnsop@ietf.org" <dnsop@ietf.org>
To: Tony Finch <dot@dotat.at>
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Subject: Re: [DNSOP] RFC 1035 vs. mandatory NS at apex?
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On Feb 7, 2019, at 9:16 AM, Tony Finch <dot@dotat.at> wrote:
> But in this scenario things soon go wrong, because RFC 2181 says the
> NODATA reply replaces the delegation records in the resolver's cache. This
> means that if a client explicitly asks for the NS records of a zone that
> lacks them, resolution for other records in the zone will subsequently
> fail.

Ah, there you have it.   So then it _is_ required.   Kevin’s point also points in that direction.

Is there somewhere in a later spec where this is stated explicitly, then?

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