Re: [DNSOP] my dnse vision

Mark Andrews <marka@isc.org> Tue, 11 March 2014 15:18 UTC

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To: Phillip Hallam-Baker <hallam@gmail.com>
From: Mark Andrews <marka@isc.org>
References: <201403051107.s25B7ext069332@givry.fdupont.fr> <02410136-DFE2-42C8-A91E-AA84641AFFCF@ogud.com> <20140305144213.GA19170@laperouse.bortzmeyer.org> <alpine.LSU.2.00.1403051637160.18502@hermes-1.csi.cam.ac.uk> <20140306145020.GA5976@laperouse.bortzmeyer.org> <alpine.LSU.2.00.1403101654150.18502@hermes-1.csi.cam.ac.uk> <CAMm+LwjSdvpKKm-nWbx0AUavcGyANkT+mw-FLQQp_R1nEtf==Q@mail.gmail.com> <alpine.LSU.2.00.1403101737520.13302@hermes-1.csi.cam.ac.uk> <CAMm+LwhnDGJftdSZMyOHi3kjocP6Pw=NOtCNQr5Kr+pOmaL1zg@mail.gmail.com>
In-reply-to: Your message of "Mon, 10 Mar 2014 14:28:56 -0400." <CAMm+LwhnDGJftdSZMyOHi3kjocP6Pw=NOtCNQr5Kr+pOmaL1zg@mail.gmail.com>
Date: Wed, 12 Mar 2014 02:18:32 +1100
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Cc: Tony Finch <dot@dotat.at>, "dnsop@ietf.org" <dnsop@ietf.org>
Subject: Re: [DNSOP] my dnse vision
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In message <CAMm+LwhnDGJftdSZMyOHi3kjocP6Pw=NOtCNQr5Kr+pOmaL1zg@mail.gmail.com>
, Phillip Hallam-Baker writes:
> On Mon, Mar 10, 2014 at 1:44 PM, Tony Finch <dot@dotat.at> wrote:
> 
> > Phillip Hallam-Baker <hallam@gmail.com> wrote:
> > >
> > > First off it means that if the recursive is being used in discovery-only
> > > mode it can simply pass data from the authoritative to the stub without
> > > checking the DNSSEC chain.
> >
> > If the recursive server is cacheing it needs to do DNSSEC validation to
> > protect its cache from poisonous authorities.
> 
> 
> But that would be an offline activity rather than within the response loop
> to service the request from the stub.
 
Actually it needs to be within the response loop so it can discard
bad data and move onto a different server.

Mark
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka@isc.org