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Re: [DNSOP] NXDOMAIN and RFC 8020

Shumon Huque <shuque@gmail.com> Tue, 06 April 2021 21:28 UTC

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From: Shumon Huque <shuque@gmail.com>
Date: Tue, 06 Apr 2021 17:28:01 -0400
Message-ID: <CAHPuVdV+F1CRO2Y5B7UiKVgfqS2zmcnb7hrtnnKbw155gmwgzA@mail.gmail.com>
To: "Murray S. Kucherawy" <superuser@gmail.com>
Cc: Brian Dickson <brian.peter.dickson@gmail.com>, "dnsop@ietf.org WG" <dnsop@ietf.org>
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Subject: Re: [DNSOP] NXDOMAIN and RFC 8020
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On Tue, Apr 6, 2021 at 5:16 PM Murray S. Kucherawy <superuser@gmail.com>
wrote:

> On Tue, Apr 6, 2021 at 12:56 PM Brian Dickson <
> brian.peter.dickson@gmail.com> wrote:
>
>> I think this is another point in favor of doing QNAME minimization.
>> RFC7816 (technically experimental, but recommended.)
>>
>> It kind of makes the query order moot; the resolver looks up the shorter
>> name first even while resolving the longer name.
>>
>
> Is there any data or even a hint of how widely that experiment has been
> deployed or implemented?
>

It's on by default in (recent versions of) a number of popular open source
DNS resolver implementations (BIND, Unbound, Knot).

Shumon.

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