Re: [DNSOP] draft-mglt-dnsop-search-list-processing-00.txt

Stephane Bortzmeyer <bortzmeyer@nic.fr> Wed, 07 May 2014 10:37 UTC

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Date: Wed, 07 May 2014 12:36:40 +0200
From: Stephane Bortzmeyer <bortzmeyer@nic.fr>
To: Daniel Migault <mglt.ietf@gmail.com>
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Subject: Re: [DNSOP] draft-mglt-dnsop-search-list-processing-00.txt
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On Mon, Apr 14, 2014 at 09:41:10PM +0200,
 Daniel Migault <mglt.ietf@gmail.com> wrote 
 a message of 63 lines which said:

> Please find draft-mglt-dnsop-search-list-processing-00.txt [1] 

> a single label that is 63 characters or less, starts with a letter,
> ends with a letter or digit, and has as interior characters only
> letters, digits, and hyphen as defined by [RFC1035].

Why this restriction, which is *not* in RFC 1035. "_tcp" is not a
single label?

> In addition, fall backs resolution between these two categories will
> happen and MUST be address by administrator before any new gTLD.

It seems to be a policy decision and not suitable for a RFC.

> For Unqualified Domain Names, the resolver MUST proceed to the
> resolution using search list.  If the resolution fails, returning a
> NXDOMAIN, no attempt SHOULD be done to resolve it as an Qualified
> Domain Name.

The second sentence is a protocol change and should not be done
lightly. Frankly, I see no reason to forbid single-label domain names
to work. (Whatever ICANN may say.)

>   This section provides a small command line that tests which TLD has
>   an A or a AAAA RRset.

May be a mention of RFC 7085 here? It has a similar script and similar
results.