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Re: [DNSOP] Call for Adoption: draft-huston-kskroll-sentinel

David Conrad <drc@virtualized.org> Tue, 28 November 2017 17:59 UTC

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Date: Tue, 28 Nov 2017 09:48:24 -0800
From: David Conrad <drc@virtualized.org>
To: Joe Abley <jabley@hopcount.ca>, Richard Barnes <rlb@ipv.sx>
Cc: tjw ietf <tjw.ietf@gmail.com>, dnsop <dnsop@ietf.org>, George Michaelson <ggm@algebras.org>
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Subject: Re: [DNSOP] Call for Adoption: draft-huston-kskroll-sentinel
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On Nov 27, 2017, 11:47 AM -0800, Richard Barnes <rlb@ipv.sx>, wrote:

> I don't think that it make sense to infer from the failure of RFC 8145 that resolver/authoritative telemetry isn't possible

Huh? RFC 8145 wasn’t a failure — it was stunningly successful. Within a few months of publication it provided us insights we hadn’t before had into how the infrastructure was actually working.  This was unexpected.

> To the degree that the DNS still works at all, there must be some channel by which information can be faithfully passed from authoritative to resolver, which can presumably be used to bootstrap telemetry.  Maybe it's a TXT record with an HTTP URL; maybe it's a funny CNAME.

Maybe it is, and when we see another viable channel, we’ll undoubtedly make use of it. Until then, adding something like sentinel would seem to be a useful way of gathering information about the state of reality.

> Maybe you can't build a road through the jungle, but there are still rivers that make it through, which can carry a message in a bottle.

I don’t want to let the perfect be the enemy of the … well, perhaps not good, but functional.

Regards,
-drc

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