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Re: [dns-privacy] Call for Adoption: draft-hal-adot-operational-considerations

Stephen Farrell <stephen.farrell@cs.tcd.ie> Tue, 20 August 2019 13:46 UTC

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To: "Henderson, Karl" <khenderson=40verisign.com@dmarc.ietf.org>, "dns-privacy@ietf.org" <dns-privacy@ietf.org>, "bemasc@google.com" <bemasc@google.com>, "hmco@env.dtu.dk" <hmco@env.dtu.dk>
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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Date: Tue, 20 Aug 2019 14:46:36 +0100
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Subject: Re: [dns-privacy] Call for Adoption: draft-hal-adot-operational-considerations
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Hiya,

I'm not who you asked but...

On 20/08/2019 14:38, Henderson, Karl wrote:
> To be clear, we argue that ADoT is NOT a new protocol. ADoT is simply
> DoT with a prepended A to disambiguate the path taken.
Doesn't the need to figure out if an authoritative
server does/doesn't do DoT before sending a query
require something new that isn't in DoT and that
must be part of ADoT?

If so, ISTM that there is a new protocol spec of
some sort needed even if 90% of the meat of that
is the reference to DoT. (I guess maybe if the
answer for discovery was "does it listen on 853"
you could argue that's not new but I didn't think
the WG had figured that out yet.)

Cheers,
S.

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