Re: [DNSOP] extension of DoH to authoritative servers

Vladimír Čunát <vladimir.cunat+ietf@nic.cz> Wed, 13 February 2019 21:51 UTC

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Date: Wed, 13 Feb 2019 22:51:00 +0100
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Archived-At: <https://mailarchive.ietf.org/arch/msg/dnsop/xPXdrvrt9y8DJuOYpNcQT2ZjncU>
Subject: Re: [DNSOP] extension of DoH to authoritative servers
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On 2/13/19 10:45 PM, Henderson, Karl wrote:
>
> Couldn’t DoT also run over port 443 just like DOH -– similar to what’s
> been proposed in this
> draft?: https://datatracker.ietf.org/doc/draft-dkg-dprive-demux-dns-http/
>
Technically you can run DoT on whatever port you like.  I believe the
port number argument and non-recognizability from https are mainly red
herrings when comparing DoH with DoT.  And there are more, as the two
protocols share almost all properties.

Example: with knot-resolver it's easy - you just add @443, either on
side of server and/or on the side of forwarding over TLS.

--Vladimir