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Re: [DNSOP] Terminology question: split DNS

John Heidemann <johnh@isi.edu> Mon, 19 March 2018 20:56 UTC

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From: John Heidemann <johnh@isi.edu>
To: dnsop <dnsop@ietf.org>
cc: Ted Lemon <mellon@fugue.com>, Paul Vixie <paul@redbarn.org>, Paul Hoffman <paul.hoffman@vpnc.org>, George Michaelson <ggm@algebras.org>
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Date: Mon, 19 Mar 2018 13:56:36 -0700
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Subject: Re: [DNSOP] Terminology question: split DNS
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On Mon, 19 Mar 2018 11:33:12 -0700, Paul Vixie wrote: 
>
>
>Ted Lemon wrote:
>> On Mar 19, 2018, at 6:10 PM, George Michaelson <ggm@algebras.org
>> <mailto:ggm@algebras.org>> wrote:
>>> "A DNS resolver which looks at the client requesting address, and uses
>>
>> That's a different thing. There's a distinction between a resolver that
>> gives different answers, and a set of authoritative servers that give
>> different answers. I believe split horizon is referring to the latter,
>> not the former.
>
>i've done both and referred to both as "split-horizon dns".
>
>bind9 views does both.

+1 on "split-horizon dns" as the term, over "split dns" and some other
neologism, on the basis of running code and existing documentation and
existing wide use.

As another demonstration of wide use of this term, see
https://en.wikipedia.org/wiki/Split-horizon_DNS

It is not, to me, too great an overlap with split-horizon routing.

   -John Heidemann

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