Re: [DNSOP] Comments on draft-ietf-dnsop-qname-minimisation

Mark Andrews <marka@isc.org> Fri, 09 January 2015 03:35 UTC

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To: Niall O'Reilly <niall.oreilly@ucd.ie>
From: Mark Andrews <marka@isc.org>
References: <CAH1iCirCRpJxHWu62nCSTCmSumXfTNHi=-jt5eWXzRgspJjm9w@mail.gmail.com> <CAH1iCip7iGgM=eiaVcy3fHx+KdOJgd5Rh8zLsnDPMgoEnE-HvA@mail.gmail.com> <0BB798D6-60F4-492D-819A-EF4E0F5848B5@virtualized.org> <20150104193602.GA23109@sources.org> <2C89D784-79BF-4906-9ABB-1B0EACA1D408@nic.br> <54A9BB75.30301@redbarn.org> <m2fvbl4kvd.wl-Niall.oReilly@ucd.ie> <20150108122336.AA139272D23F@rock.dv.isc.org> <m2egr54e96.wl-Niall.oReilly@ucd.ie>
In-reply-to: Your message of "Thu, 08 Jan 2015 13:02:13 -0000." <m2egr54e96.wl-Niall.oReilly@ucd.ie>
Date: Fri, 09 Jan 2015 14:35:22 +1100
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Cc: "dnsop@ietf.org WG" <dnsop@ietf.org>, Paul Vixie <paul@redbarn.org>, David Conrad <drc@virtualized.org>, Rubens Kuhl <rubensk@nic.br>
Subject: Re: [DNSOP] Comments on draft-ietf-dnsop-qname-minimisation
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In message <m2egr54e96.wl-Niall.oReilly@ucd.ie>, "Niall O'Reilly" writes:
> At Thu, 08 Jan 2015 23:23:36 +1100,
> Mark Andrews wrote:
> > 
> > It is after 15 Jul 85.  "dk" is no longer a hostname.  There is
> > just a node in the DNS tree with a A record attached which has no
> > defined meaning.
> > 
> > Mark
> 
>   Thanks, Mark.
> 
>   RFC 1034 (November 1987, but I'm sure you know that) uses the
>   term "host name" quite freely, notably at 5.2.1.1, where the
>   use of an A record for "Host name to host address translation"
>   is described.

And RFC 1034 also says follow the naming rules for the things you are
putting in the DNS which people seem to want to ignore.
 
_foo.example is not a host name (or hostname) regardless of whether
it has a A record or not.  Similarly dk is not a hostname.  A "A"
record does not make a hostname though it is required for a hostname.

>   The semantic subtlety of placing or omitting a space between
>   "host" and "name" is too delicate for me.
> 
> 
>   Best regards,
>   Niall
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka@isc.org