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Re: [mif] Last Call for MIF DNS server selection document

Brian E Carpenter <brian.e.carpenter@gmail.com> Sat, 10 September 2011 01:56 UTC

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Date: Sat, 10 Sep 2011 13:58:17 +1200
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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To: Keith Moore <moore@network-heretics.com>
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Cc: mif@ietf.org, iesg@ietf.org
Subject: Re: [mif] Last Call for MIF DNS server selection document
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On 2011-09-10 12:03, Keith Moore wrote:
> On Sep 9, 2011, at 7:33 PM, Brian E Carpenter wrote:
> 
>>> doomed to the eventual state of affairs
>>> where the exact same question asked of servers in different networks
>>> would give different answers.  We can't change the past. 
>> As long as the reply for a given query is always NXDOMAIN
>> *except* for the one name server serving the particular offshoot
>> of the namespace that the location-dependent domain is in,
>> we have not broken the uniqueness of the namespace.
> 
> Actually, I disagree.  NXDOMAIN means "this domain does not exist".     Applications should be able to rely on that.

Well, that's the point: they can't. As far as I can see, ever since
the first deployment of split DNS, you have to qualify that
meaning with "as far as I know."

I don't mean to imply that I'm happy with this.

   Brian

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