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Re: [DNSOP] CDS polling, was Re: [Ext] Re: Clarifying referrals (#35)

Evan Hunt <each@isc.org> Mon, 13 November 2017 23:39 UTC

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Date: Mon, 13 Nov 2017 23:37:56 +0000
From: Evan Hunt <each@isc.org>
To: Mark Andrews <marka@isc.org>
Cc: Edward Lewis <edward.lewis@icann.org>, Tony Finch <dot@dotat.at>, "dnsop@ietf.org" <dnsop@ietf.org>
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Subject: Re: [DNSOP] CDS polling, was Re: [Ext] Re: Clarifying referrals (#35)
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On Tue, Nov 14, 2017 at 09:16:43AM +1100, Mark Andrews wrote:
> Remember the draft was designed to handle ALL record updates to the
> parent zone after being approved by the registrar in a unified manner.
> NS, DS, A, DNAME, AAAA, TXT, CNAME, etc. This isn’t restricted to DS
> records.  

In the present context, I was only suggesting this method be used for
NOTIFY, not UPDATE -- to signal the parent that it should poll the child
for CDS/CDNSKEY.  (I guess CSYNC could be included in the mix as well,
though, for updating NS and glue.)

I would suggest the child should be polled periodically regardless. If
the SRV record were spoofed, causing the child to send a NOTIFY to the
wrong address, synchronization should still occur, just not as quickly.

-- 
Evan Hunt -- each@isc.org
Internet Systems Consortium, Inc.

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