Re: [Doh] [Ext] Servers offering responses for domaines they are not responsible for

Eliot Lear <lear@cisco.com> Mon, 06 November 2017 06:27 UTC

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To: Martin Thomson <martin.thomson@gmail.com>
Cc: Paul Hoffman <paul.hoffman@icann.org>, "doh@ietf.org" <doh@ietf.org>, Mark Nottingham <mnot@mnot.net>
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From: Eliot Lear <lear@cisco.com>
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Date: Mon, 6 Nov 2017 07:27:30 +0100
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Subject: Re: [Doh] [Ext] Servers offering responses for domaines they are not responsible for
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Good evening(?) Martin,


On 11/6/17 6:18 AM, Martin Thomson wrote:
> Eliot, are you assuming that the DNS client will be looking at
> responses from origins other than the one it has configured as a DOH
> server?

No, although I have a good joke about that re certain all-encompassing
apps and 4-engine aircraft.  Find me next week ;-)

My presumption is simply that the common case will be that HTTP will be
used as a substrate for DNS queries, separate from any other subsystem,
at least initially.  I think this is Paul's view as well, if I
understand him correctly.

What I am getting at is that introducing a new operating model entails
certain operational aspects, most of which can be addressed.  But let's
not kid ourselves: in the case of global load balancers, if this
mechanism isn't going to disturb them, then at least for the moment, one
should expect to have an infrastructure similar to that used by Google
for 8.8.8.8, whereas Eliot's home system would be an exceedingly poor
choice for general use ;-)

Sorry for not sticking to example.com examples- I am trying to convey
some notion of scope and scale.

Eliot