Re: [Add] I-D Action: draft-reddy-add-enterprise-split-dns-08.txt
Ted Hardie <ted.ietf@gmail.com> Mon, 24 January 2022 15:54 UTC
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From: Ted Hardie <ted.ietf@gmail.com>
Date: Mon, 24 Jan 2022 15:53:56 +0000
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To: Ralf Weber <dns@fl1ger.de>
Cc: Ben Schwartz <bemasc=40google.com@dmarc.ietf.org>,
Paul Wouters <paul@nohats.ca>,
ADD Mailing list <add@ietf.org>, tirumal reddy <kondtir@gmail.com>
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Subject: Re: [Add] I-D Action: draft-reddy-add-enterprise-split-dns-08.txt
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On Mon, Jan 24, 2022 at 3:45 PM Ralf Weber <dns@fl1ger.de> wrote: > Moin! > > On 24 Jan 2022, at 16:20, Ben Schwartz wrote: > > I think this is fine. You just publish DS records for both the internal > > and external DNSKEYs. Validation will then succeed for records signed by > > either key. > But then I give away that corp.example.com exists and that it has a > DNSKEY. > > If this concerns you, you can mint a wide variety of domains and assign them DNSKEYs, using only a fraction. Is the well-used domain fleen.example.com? bumblebridge.example.com? or even daffy-down-dilly.example.com? Of course, if you use a string like corp, there is no point in pretending that it is a secret, as it is so common as to be the first or second guess. There's not much worry about giving that away, at least in my personal opinion. regards, Ted > >> Also keep in mind that if > >> corp.example.com > >> is NXDomain externally you need a special/different > >> example.com > >> internally to delegate corp.example.com. > >> > > > > Agreed. The claimed zone (which could be "example.com" or " > corp.example.com") > > must resolve differently internally and externally, or you haven't > actually > > "split" anything. > I have. example.com is different externally then internally. Externally > it is > missing the corp.example.com delegation. > > >> I’ve always envisioned DNSSEC split horizon needing an internal trust > anchor > >> because of this ideally in the recursive resolver and stub resolver. > >> > > > > I don't think there's any need for a separate trust anchor. > In the above example there is, as corp.example.com does not exist in > public space > or are you saying that the case I described is not split DNS? > > So long > -Ralf > ——- > Ralf Weber > > -- > Add mailing list > Add@ietf.org > https://www.ietf.org/mailman/listinfo/add >
- [Add] I-D Action: draft-reddy-add-enterprise-spli… internet-drafts
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… tirumal reddy
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Paul Wouters
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Ben Schwartz
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Ralf Weber
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Michael Richardson
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Paul Wouters
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Ben Schwartz
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Ben Schwartz
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Ralf Weber
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Ted Hardie
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Ben Schwartz
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Paul Wouters
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Ben Schwartz
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Joe Abley
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Michael Richardson
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Michael Richardson
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Paul Wouters
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Ben Schwartz
- Re: [Add] I-D Action: draft-reddy-add-enterprise-… Eric Orth