Name ownership and LLMNR (Re: Last Call: 'Linklocal Multicast Name Resolution...)
Harald Tveit Alvestrand <harald@alvestrand.no> Thu, 01 September 2005 09:45 UTC
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Date: Thu, 01 Sep 2005 11:43:59 +0200
From: Harald Tveit Alvestrand <harald@alvestrand.no>
To: Keith Moore <moore@cs.utk.edu>, Dave Singer <singer@apple.com>
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Subject: Name ownership and LLMNR (Re: Last Call: 'Linklocal Multicast Name Resolution...)
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We're probably rehashing the DNSEXT discussion here, but I wasn't part of the DNSEXT discussion..... LLMNR allows me to treat names in a different way than mDNS does. If I have a name that I'm certain I own (this box is, with high certainty, the only one in the world named HALVESTR-W2K02.emea.cisco.com), LLMNR allows me to assert that name on a LAN even when the DNS is not available, or when that name is not currently asserted in the DNS. mDNS, as I understand it, doesn't allow me to do that - I would have to assert "HALVESTR-W2K02.local", or "HALVESTR-W2K02.emea.cisco.com.local". If we separate the concept of "name ownership" from "name assertion mechanism", and regard the DNS as just one mechanism of name assertion, then the problem reduces to "how do I prove that I have rights to the name", rather than "what name should I assert". I think the LLMNR spec, which only talks about mechanism, is missing a reference to some other document (which may not exist, being too controversial to get written) laying out a theory of name ownership, in which both DNS and LLMNR fit as assertion mechanisms. Not that I can say, based on this, that one of (LLMNR, mDNS) is better than the other. But it certainly emphasizes the fact that they're attacking the problem from completely different perspectives. Harald --On 31. august 2005 23:34 -0400 Keith Moore <moore@cs.utk.edu> wrote: > Dave Singer wrote: >> The whole idea that 'real DNS' can arbitrarily pre-empt local name >> resolution seems, well, wrong, and needs serious study for security >> implications for the services using those names, no? > > The whole idea that local names should look like DNS names and be queried > through the same APIs and user interfaces seems, well, wrong (or dubious > at best), and needs serious study for the implications of applications > using those APIs and the impact of such names on DNS, no? > > IMO, local names and a lookup service for local names would be extremely > useful, but neither the names nor the query interface should look much > like DNS - the names should look different because otherwise there's too > much potential for confusion with DNS names, and the query service should > look different because local name lookup service probably can't make the > same kinds of consistency or stability assurances that DNS does. > > > _______________________________________________ > Ietf mailing list > Ietf@ietf.org > https://www1.ietf.org/mailman/listinfo/ietf > >
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- Re: Last Call: 'Linklocal Multicast Name Resoluti… Stuart Cheshire
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Margaret Wasserman
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Stuart Cheshire
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Harald Tveit Alvestrand
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Marc Manthey
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Stuart Cheshire
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Keith Moore
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Margaret Wasserman
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Stuart Cheshire
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Stuart Cheshire
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Stuart Cheshire
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Margaret Wasserman
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Margaret Wasserman
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Stephane Bortzmeyer
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Marc Manthey
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Stephane Bortzmeyer
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Russ Allbery
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Brian E Carpenter
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Bill Manning
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Marshall Eubanks
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Keith Moore
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Ian Jackson
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Iljitsch van Beijnum
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Russ Allbery
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Bill Manning
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Rob Austein
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Marc Manthey
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Steven M. Bellovin
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Pete Resnick
- Re: Last Call: 'Linklocal Multicast Name Resoluti… bmanning
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Brian E Carpenter
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Russ Allbery
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Ian Jackson
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Brian E Carpenter
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Stuart Cheshire
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Stuart Cheshire
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Margaret Wasserman
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- RE: Last Call: 'Linklocal Multicast Name Resoluti… Christian Huitema
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Margaret Wasserman
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Stuart Cheshire
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Iljitsch van Beijnum
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Ned Freed
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Russ Allbery
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Russ Allbery
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Iljitsch van Beijnum
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Jeffrey Hutzelman
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Spencer Dawkins
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Henrik Levkowetz
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Bill Manning
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Marc Manthey
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Brian E Carpenter
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Steven M. Bellovin
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Jeroen Massar
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Brian E Carpenter
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Single DNS root (Re: Last Call: 'Linklocal Multic… Harald Tveit Alvestrand
- RE: Last Call: 'Linklocal Multicast Name Resoluti… Christian Huitema
- Alternative roots (was: Re: Last Call: 'Linklocal… Paul Hoffman
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Paul Hoffman
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Christian de Larrinaga
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Eric A. Hall
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Ned Freed
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Ned Freed
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Eric A. Hall
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Ian Jackson
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Ned Freed
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Ian Jackson
- RE: Last Call: 'Linklocal Multicast Name Resoluti… Ian Jackson
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Tony Finch
- RE: Last Call: 'Linklocal Multicast Name Resoluti… Stuart Cheshire
- RE: Last Call: 'Linklocal Multicast Name Resoluti… Christian Huitema
- RE: Last Call: 'Linklocal Multicast Name Resoluti… Dave Singer
- Re: Single DNS root JFC (Jefsey) Morfin
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Keith Moore
- RE: Last Call: 'Linklocal Multicast Name Resoluti… Jeroen Massar
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Frank Ellermann
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Jeroen Massar
- Name ownership and LLMNR (Re: Last Call: 'Linkloc… Harald Tveit Alvestrand
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Ian Jackson
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Peter Dambier
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Keith Moore
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Henning Schulzrinne
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Iljitsch van Beijnum
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Tony Finch
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Alan Barrett
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Iljitsch van Beijnum
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Tony Finch
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Paul Vixie
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Stephane Bortzmeyer
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Paul Vixie
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Ian Jackson
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Harald Tveit Alvestrand
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Jeroen Massar
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Iljitsch van Beijnum
- Re: Single DNS root John C Klensin
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Daniel Senie
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Jeffrey Hutzelman
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Harald Tveit Alvestrand
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Iljitsch van Beijnum
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Bill Manning
- Re: Single DNS root JFC (Jefsey) Morfin
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Tony Finch
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Steven M. Bellovin
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Tony Finch
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Masataka Ohta
- Re: Last Call: 'Linklocal Multicast Name Resoluti… JFC (Jefsey) Morfin
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… Harald Tveit Alvestrand
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Daniel Karrenberg
- Re: Name ownership and LLMNR (Re: Last Call: 'Lin… JFC (Jefsey) Morfin
- Re: Last Call: 'Linklocal Multicast Name Resoluti… Andrew Sullivan
- RE: Last Call: 'Linklocal Multicast Name Resoluti… Stuart Cheshire