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Re: [DNSOP] CloudFlare policy on ANY records changing

Paul Vixie <paul@redbarn.org> Wed, 11 March 2015 23:35 UTC

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Date: Thu, 12 Mar 2015 07:35:10 +0800
From: Paul Vixie <paul@redbarn.org>
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To: Tony Finch <dot@dotat.at>
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Cc: Evan Hunt <each@isc.org>, dnsop <dnsop@ietf.org>, "Wessels, Duane" <dwessels@verisign.com>
Subject: Re: [DNSOP] CloudFlare policy on ANY records changing
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Tony Finch wrote:
> Evan Hunt <each@isc.org> wrote:
>> >
>> > I'm concerned that a NOERROR/NODATA for qtype=ANY, once cached, would be
>> > identical to the cache representation of an empty nonterminal node, and
>> > that all subsequent queries for any other qtype would then be answered
>> > with the cached NODATA.
>
> These are signed zones so the answer has to validate. Perhaps the answer
> should be just the NSEC(3) and RRSIG(NSEC(3)) records matching the QNAME,
> which is a plausible way to say, yes we have records here even though this
> answer doesn't contain them.

i love this plan.

-- 
Paul Vixie

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