Re: [DNSOP] new ANAME draft: draft-hunt-dnsop-aname-00.txt

Tony Finch <dot@dotat.at> Tue, 11 April 2017 15:52 UTC

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Date: Tue, 11 Apr 2017 16:52:10 +0100
From: Tony Finch <dot@dotat.at>
To: Evan Hunt <each@isc.org>
cc: Paul Wouters <paul@nohats.ca>, dnsop@ietf.org
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Subject: Re: [DNSOP] new ANAME draft: draft-hunt-dnsop-aname-00.txt
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Evan Hunt <each@isc.org> wrote:
>
> Expansion of ANAME on the authoritative end is a workaround for the
> fact that we can't go back in time and put ANAME support into all
> the resolvers.

On the authoritative side I think server behaviour should be partitioned
into primary and secondary:

Primary servers are able to modify zone contents. This might be old skool
batch provisioning or dynamic on-demand trickery.

Secondary servers just serve what they get via xfer from primaries.

ANAME expansion happens on primaries and (in the future) on recursors, but
not secondaries nor stubs.

Tony.
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