Re: [DNSOP] extension of DoH to authoritative servers
Bjørn Mork <bjorn@mork.no> Thu, 14 February 2019 12:12 UTC
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From: Bjørn Mork <bjorn@mork.no>
To: Vladimír Čunát <vladimir.cunat+ietf@nic.cz>
Cc: "dnsop@ietf.org" <dnsop@ietf.org>, Shane Kerr <shane@time-travellers.org>
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Date: Thu, 14 Feb 2019 13:11:55 +0100
In-Reply-To: <b3341f0f-cd06-8b08-5b5f-f887289a5f23@nic.cz> ("Vladimír Čunát"'s message of "Thu, 14 Feb 2019 12:51:40 +0100")
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Subject: Re: [DNSOP] extension of DoH to authoritative servers
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Vladimír Čunát <vladimir.cunat+ietf@nic.cz> writes: > You can still multiplex based on SNI sent by the client. HTTPS clients > surely send it commonly. DoT clients perhaps not so often, but that's > just an implementation detail (which I was fixing in the past few weeks > in knot-resolver, incidentally). My understanding of the reference to BCP195 from https://tools.ietf.org/html/rfc7858#section-3.2 is that SNI support is required for all DoT implementations. > I'm not sure how easy SNI-based multiplexing is to configure with > nowadays software, but I believe I've heard of some such setup with > nginx. And I don't have any idea whether SNI encryption would interfere > with that, but I hope not. ESNI will be a key part of DNS privacy, > though mainly for the non-DNS traffic. It's simple to do with haproxy at least: https://www.haproxy.com/blog/enhanced-ssl-load-balancing-with-server-name-indication-sni-tls-extension/ ...which incidentally also can be used to support DoT with *any* DNS server as backend. Bjørn
- [DNSOP] extension of DoH to authoritative servers zuopeng@cnnic.cn
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Jeremy Rand
- Re: [DNSOP] extension of DoH to authoritative ser… Paul Wouters
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Paul Vixie
- Re: [DNSOP] extension of DoH to authoritative ser… Paul Wouters
- Re: [DNSOP] extension of DoH to authoritative ser… Joe Abley
- Re: [DNSOP] extension of DoH to authoritative ser… David Conrad
- Re: [DNSOP] extension of DoH to authoritative ser… Paul Vixie
- Re: [DNSOP] extension of DoH to authoritative ser… Ted Lemon
- Re: [DNSOP] extension of DoH to authoritative ser… Paul Vixie
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Ted Lemon
- Re: [DNSOP] extension of DoH to authoritative ser… Ted Lemon
- Re: [DNSOP] extension of DoH to authoritative ser… Paul Vixie
- Re: [DNSOP] extension of DoH to authoritative ser… Patrik Fältström
- Re: [DNSOP] extension of DoH to authoritative ser… Paul Vixie
- Re: [DNSOP] extension of DoH to authoritative ser… Ted Lemon
- Re: [DNSOP] extension of DoH to authoritative ser… Paul Vixie
- Re: [DNSOP] extension of DoH to authoritative ser… Ted Lemon
- Re: [DNSOP] extension of DoH to authoritative ser… Paul Vixie
- Re: [DNSOP] extension of DoH to authoritative ser… David Conrad
- Re: [DNSOP] extension of DoH to authoritative ser… Paul Vixie
- Re: [DNSOP] extension of DoH to authoritative ser… David Conrad
- Re: [DNSOP] extension of DoH to authoritative ser… Paul Vixie
- Re: [DNSOP] extension of DoH to authoritative ser… zuopeng@cnnic.cn
- Re: [DNSOP] extension of DoH to authoritative ser… zuopeng@cnnic.cn
- Re: [DNSOP] extension of DoH to authoritative ser… Benno Overeinder
- Re: [DNSOP] extension of DoH to authoritative ser… Vittorio Bertola
- Re: [DNSOP] extension of DoH to authoritative ser… Vladimír Čunát
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… David Conrad
- Re: [DNSOP] extension of DoH to authoritative ser… Henderson, Karl
- Re: [DNSOP] extension of DoH to authoritative ser… Vladimír Čunát
- [DNSOP] DoH vs DoT vs network operators, and requ… Brian Dickson
- Re: [DNSOP] DoH vs DoT vs network operators, and … Warren Kumari
- Re: [DNSOP] extension of DoH to authoritative ser… zuopeng@cnnic.cn
- Re: [DNSOP] extension of DoH to authoritative ser… Paul Wouters
- Re: [DNSOP] extension of DoH to authoritative ser… Jim Reid
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… zuopeng@cnnic.cn
- Re: [DNSOP] extension of DoH to authoritative ser… zuopeng@cnnic.cn
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… zuopeng@cnnic.cn
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Stephane Bortzmeyer
- Re: [DNSOP] extension of DoH to authoritative ser… Jim Reid
- [DNSOP] Multiplexing DNS & HTTP over TLS (was: ex… Shane Kerr
- Re: [DNSOP] extension of DoH to authoritative ser… Vladimír Čunát
- Re: [DNSOP] extension of DoH to authoritative ser… Bjørn Mork
- Re: [DNSOP] Multiplexing DNS & HTTP over TLS (was… Joe Abley
- Re: [DNSOP] Multiplexing DNS & HTTP over TLS Klaus Malorny
- Re: [DNSOP] Multiplexing DNS & HTTP over TLS Shane Kerr
- Re: [DNSOP] extension of DoH to authoritative ser… Tony Finch
- Re: [DNSOP] Multiplexing DNS & HTTP over TLS John Levine
- Re: [DNSOP] extension of DoH to authoritative ser… Henderson, Karl
- Re: [DNSOP] Multiplexing DNS & HTTP over TLS Warren Kumari