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Re: [Add] Comparative DoH Discovery DNS RR Types

Rob Sayre <sayrer@gmail.com> Tue, 30 June 2020 03:34 UTC

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From: Rob Sayre <sayrer@gmail.com>
Date: Mon, 29 Jun 2020 20:34:04 -0700
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To: "Livingood, Jason" <Jason_Livingood@comcast.com>
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Subject: Re: [Add] Comparative DoH Discovery DNS RR Types
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On Mon, Jun 29, 2020 at 8:37 AM Livingood, Jason <
Jason_Livingood@comcast.com> wrote:

> Just noting far we have a variety of suggestions on CNAME, URI, TXT,
> RESINFO and HTTPSSVC (though I don’t think all have I-Ds as yet) - always
> nice to see the ideas flowing. :-) As a practical person that in IETF land
> is considered an implementer, I naturally feel inclined towards RR types
> that already exist as this enables something to be rapidly deployed.
>

TXT was used for ESNI/ECH draft -02. It only took ten or twelve lines of
code to get the value out of a DNS response, but it felt hacky, in the
pejorative sense.

It seemed unlikely that a large number of server implementations would
encode the data in the same way.

thanks,
Rob

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