Re: [DNSOP] Brief addition to terminology-bis draft

"John Levine" <johnl@taugh.com> Sun, 09 September 2018 21:50 UTC

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From: "John Levine" <johnl@taugh.com>
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Subject: Re: [DNSOP] Brief addition to terminology-bis draft
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In article <CANeU+ZDMLxpS1VLCunM6DRmkLqtt521Q+QSHwdhvMZ-+eGqSMA@mail.gmail.com>; you write:
>-=-=-=-=-=-
>
>Actually, 5.2 suggests that a master  file (not zone) should contain a
>single class and single SOA record.  That’s not the same thing as limiting
>a zone to a single class AFAICT.

(catching up)

NS records are class specific so, except maybe at the root, a zone
with multiple classes doesn't make any sense. There'd be no way to
find the records in any class that didn't match the NS.  RFC 1034 says
that by covention the parallel class namespaces are all the same, but
there was never anything enforcing that.

R's,
John