> On 12 Aug 2017, at 22:35, Ted Lemon <mel...@fugue.com> wrote: > > That is, the title of the document should be "DNS servers should return > NXDOMAIN for localhost" and the abstract should say why, and then the bit > about stub resolvers translating "localhost" to a reachable identifier for > the localhost such as 127.1 or ::1 should be the thing that's mentioned as an > aside.
RFC 6761 requires recursive servers to return positive 127.0.0.1 and ::1 responses, not NXDOMAIN. I can't see an explanation in the draft for the change to NXDOMAIN. https://tools.ietf.org/html/rfc6761#section-6.3 Should there also be some text about the wisdom (or otherwise) of localhost entries in public zones? E.g. localhost.cam.ac.uk - see also http://seclists.org/bugtraq/2008/Jan/270 and the follow up messages from Florian Weimer and David Malone. Tony. -- f.anthony.n.finch <d...@dotat.at> http://dotat.at
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