Re: [Doh] [DNSOP] [Add] [dns-privacy] Do53 vs DoT vs DoH Page Load Performance Study at ANRW

Paul Vixie <paul@redbarn.org> Mon, 22 July 2019 20:52 UTC

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From: Paul Vixie <paul@redbarn.org>
To: dnsop@ietf.org
Cc: Andrew Campling <andrew.campling@419.consulting>, "Livingood, Jason" <Jason_Livingood@comcast.com>, Puneet Sood <puneets=40google.com@dmarc.ietf.org>, Kevin Borgolte <kevin@iseclab.org>, DoH WG <doh@ietf.org>, "pschmitt@cs.princeton.edu" <pschmitt@cs.princeton.edu>, "jordanah@princeton.edu" <jordanah@princeton.edu>, "feamster@uchicago.edu" <feamster@uchicago.edu>, "add@ietf.org" <add@ietf.org>, "dns-privacy@ietf.org" <dns-privacy@ietf.org>, Rob Sayre <sayrer@gmail.com>, "ahounsel@cs.princeton.edu" <ahounsel@cs.princeton.edu>
Date: Mon, 22 Jul 2019 20:52:39 +0000
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Subject: Re: [Doh] [DNSOP] [Add] [dns-privacy] Do53 vs DoT vs DoH Page Load Performance Study at ANRW
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On Monday, 22 July 2019 20:45:43 UTC Andrew Campling wrote:
> ...
> 
> [AC] This would be helpful given it appears some (all?) DoH resolvers have
> indicated that they will not pass sufficient information to (rival) CDN
> vendors to allow geographic routing.  Clearly if this is commonplace then
> performance gains from DoH, if any, could be lost from an end-user
> perspective due to inefficient routing of content.  

several people have disagreed with my public statements that "everyone should 
run their own rdns, don't use quad-anything" on the basis of the blender 
effect. when i tell them about ECS they stop talking, which is too bad, 
because they then don't get to hear the stories of how /32 and /128 are the 
default ECS subnet size for many ISP resolvers.

apparently ECS creates problems for privacy, but _how could we have 
suspected_?

-- 
Paul