Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertola-bcp-doh-clients
Paul Vixie <paul@redbarn.org> Tue, 12 March 2019 18:35 UTC
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From: Paul Vixie <paul@redbarn.org>
To: dnsop@ietf.org
Cc: Eric Rescorla <ekr@rtfm.com>, Stephen Farrell <stephen.farrell@cs.tcd.ie>, "Konda, Tirumaleswar Reddy" <TirumaleswarReddy_Konda@mcafee.com>, "doh@ietf.org" <doh@ietf.org>, Christian Huitema <huitema@huitema.net>, nalini elkins <nalini.elkins@e-dco.com>, "dns-privacy@ietf.org" <dns-privacy@ietf.org>, Vittorio Bertola <vittorio.bertola=40open-xchange.com@dmarc.ietf.org>, "Ackermann, Michael" <mackermann@bcbsm.com>
Date: Tue, 12 Mar 2019 18:35:21 +0000
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Organization: Vixie Freehold
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Subject: Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertola-bcp-doh-clients
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On Monday, 11 March 2019 21:44:06 UTC Eric Rescorla wrote: > On Mon, Mar 11, 2019 at 11:13 AM Paul Vixie <paul@redbarn.org> wrote: > > > > Enterprise networks are already able to block DoH services, > > > > i wonder if everyone here knows that TLS 1.3 and encrypted headers is > > going to push a SOCKS agenda onto enterprises that had not previously > > needed one, > > I'm pretty familiar with TLS 1.3, but I don't know what this means. TLS 1.3 > doesn't generally encrypt headers any more than TLS 1.2 did, except for > the content type byte, which isn't that useful for inspection anyway. > Are you perchance referring to encrypted SNI? Something else? yes, i mean encrypted SNI, and i apologize for saying "encrypted headers". > encrypted SNI, an extension to the TLS 1.3 protocol that improves privacy of > Internet users by preventing on-path observers, including ISPs, coffee shop > owners and firewalls, from intercepting the TLS Server Name Indication > (SNI) extension and using it to determine which websites users are > visiting. (https://blog.cloudflare.com/encrypted-sni/) what this means is, if someone is concerned that some of the web sites reachable through some CDN are dangerous, they can no longer operate a mostly- transparent edge gateway, to permit or forbid transactions on a case by case basis. rather, they will have to use SOCKS or similar, and blackhole the CDN from being reached other than from the SOCKS/similar proxy. this significantly increases policy enforcement costs, probably placing them outside the budget of most small/medium companies, and all home networks. and that's the intent. so: > Enterprise networks are already able to block DoH services, that's old-think. vixie
- [dns-privacy] New: draft-bertola-bcp-doh-clients Vittorio Bertola
- Re: [dns-privacy] New: draft-bertola-bcp-doh-clie… Stephen Farrell
- Re: [dns-privacy] New: draft-bertola-bcp-doh-clie… Vittorio Bertola
- Re: [dns-privacy] New: draft-bertola-bcp-doh-clie… Christian Huitema
- Re: [dns-privacy] New: draft-bertola-bcp-doh-clie… Vittorio Bertola
- Re: [dns-privacy] New: draft-bertola-bcp-doh-clie… nalini elkins
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Christian Huitema
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… nalini elkins
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Paul Vixie
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… nalini elkins
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Christian Huitema
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Paul Vixie
- Re: [dns-privacy] New: draft-bertola-bcp-doh-clie… Neil Cook
- Re: [dns-privacy] New: draft-bertola-bcp-doh-clie… Stephen Farrell
- Re: [dns-privacy] New: draft-bertola-bcp-doh-clie… Neil Cook
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Konda, Tirumaleswar Reddy
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… nalini elkins
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Paul Vixie
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… nalini elkins
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Brian Dickson
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Stephen Farrell
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Eliot Lear
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Daniel Stenberg
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Eric Rescorla
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Paul Vixie
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… nalini elkins
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Stephen Farrell
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Konda, Tirumaleswar Reddy
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Konda, Tirumaleswar Reddy
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Neil Cook
- Re: [dns-privacy] [EXTERNAL] Re: [Doh] [DNSOP] Ne… Winfield, Alister
- Re: [dns-privacy] [EXTERNAL] [Doh] [DNSOP] New: d… Eliot Lear
- Re: [dns-privacy] [EXTERNAL] [Doh] [DNSOP] New: d… Konda, Tirumaleswar Reddy
- Re: [dns-privacy] [Doh] New: draft-bertola-bcp-do… Stephane Bortzmeyer
- Re: [dns-privacy] New: draft-bertola-bcp-doh-clie… Stephane Bortzmeyer
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Stephane Bortzmeyer
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Stephane Bortzmeyer
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Konda, Tirumaleswar Reddy
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Neil Cook
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Eric Rescorla
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Jim Reid
- Re: [dns-privacy] [Doh] New: draft-bertola-bcp-do… Neil Cook
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Jim Reid
- Re: [dns-privacy] [EXTERNAL] [Doh] [DNSOP] New: d… Eliot Lear
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Christian Huitema
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Paul Vixie
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Paul Vixie
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Michael Sinatra
- Re: [dns-privacy] [Doh] New: draft-bertola-bcp-do… Yishai Beeri (yishaib)
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Paul Vixie
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Stephen Farrell
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Christian Huitema
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Stephen Farrell
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Paul Vixie
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Brian Dickson
- Re: [dns-privacy] [Doh] New: draft-bertola-bcp-do… Stephane Bortzmeyer
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Ralf Weber
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Paul Vixie
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Paul Vixie
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Christian Huitema
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Paul Vixie
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Stephen Farrell
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Mark Andrews
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Paul Wouters
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Paul Wouters
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Stephen Farrell
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Raymond Burkholder
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Vittorio Bertola
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… nalini elkins
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Vittorio Bertola
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Christian Huitema
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Raymond Burkholder
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Christian Huitema
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Vittorio Bertola
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Christian Huitema
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Eliot Lear
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Konda, Tirumaleswar Reddy
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Paul Vixie
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Paul Vixie
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Paul Vixie
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Brian Haberman
- Re: [dns-privacy] [Doh] [DNSOP] New: draft-bertol… Livingood, Jason
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Christian Huitema
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Brian Dickson
- Re: [dns-privacy] [DNSOP] [Doh] New: draft-bertol… Raymond Burkholder
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… william manning
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Watson Ladd
- Re: [dns-privacy] [DNSOP] New: draft-bertola-bcp-… Paul Vixie