Re: [DNSOP] Delegation into the interior of a zone?
Paul Vixie <paul@redbarn.org> Thu, 27 December 2018 20:00 UTC
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Date: Thu, 27 Dec 2018 11:59:46 -0800
From: Paul Vixie <paul@redbarn.org>
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Subject: Re: [DNSOP] Delegation into the interior of a zone?
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John Levine wrote: > Over in bind-users somone suggested a CIDR rDNS kludge in which you > delegate a bunch of names out of a rDNS zone to a second server, > and the second server answers them all from one zone, like this > > $ORIGIN 1.1.1.in-addr.arpa. > @ SOA blah > > 10 NS otherserver > 11 NS otherserver > 12 NS otherserver in RFC 2317 we do this with CNAME not NS. did the proponent explain why CNAME wasn't suitable for her purposes? > > > and on the other server > > $ORIGIN 1.1.1.in-addr.arpa. > @ SOA blah > > 10 PTR foo > 11 PTR bar > 12 PTR baz > > That is, the two zones have the same apex, and NS records point into > the interior of the second zone, not at the apex. That works in BIND, > of course, but it seems wrong. I am having trouble tracking down the > specification of why it is wrong. if the old domain-obscenity-checker (DoC) which came out with the domain-information-groper (DiG) back in the 1980's says it's wrong, then it's wrong. if the specifications don't cover this case, they are incomplete. or at least, that's how i do things. > > Any sugestions? It would fail with DNSSEC since there's no DNSKEY > to match the delegation DS, but how wrong was it before that? > > Signed, > Confused first i'd have to know what problem caused by CNAME in the outer zone they think they are solving using NS. -- P Vixie
- [DNSOP] Delegation into the interior of a zone? John Levine
- Re: [DNSOP] Delegation into the interior of a zon… Erik Kline
- Re: [DNSOP] Delegation into the interior of a zon… Paul Vixie
- Re: [DNSOP] Delegation into the interior of a zon… John R Levine
- Re: [DNSOP] Delegation into the interior of a zon… Grant Taylor
- Re: [DNSOP] Delegation into the interior of a zon… Grant Taylor
- Re: [DNSOP] Delegation into the interior of a zon… John Levine
- Re: [DNSOP] Delegation into the interior of a zon… Paul Vixie
- Re: [DNSOP] Delegation into the interior of a zon… Grant Taylor
- Re: [DNSOP] Delegation into the interior of a zon… John Levine
- Re: [DNSOP] Delegation into the interior of a zon… Tony Finch