Re: [DNSOP] opportunistic semi-authoritative caching (Re: DNSOP Call for Adoption - draft-tale-dnsop-serve-stale)

Matthew Kerwin <matthew@kerwin.net.au> Sat, 09 September 2017 02:17 UTC

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From: Matthew Kerwin <matthew@kerwin.net.au>
Date: Sat, 9 Sep 2017 12:17:11 +1000
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To: Tony Finch <dot@dotat.at>
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Subject: Re: [DNSOP] opportunistic semi-authoritative caching (Re: DNSOP Call for Adoption - draft-tale-dnsop-serve-stale)
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On 9 September 2017 at 00:32, Tony Finch <dot@dotat.at> wrote:

> Paul Vixie <paul@redbarn.org> wrote:
> >
> > if they really need this, they should provide a method by which i can
> specify
> > both a TTL and an Expiry, and i will consider publishing both values,
> and if i
> > do, then they can use them the way i intend them.
>
> RRSIG sort-of does that?
>
>
Perhaps there's value in looking at HTTP's Cache-Control frankenbeast,
particularly RFC 5861. Being able to specify stale-on-error /
stale-while-revalidate (or explicitly *not*) alongside a hard TTL could be
useful.

Cheers
-- 
  Matthew Kerwin
  http://matthew.kerwin.net.au/