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

In message <20140507103639.GA28674@nic.fr>, Stephane Bortzmeyer writes:
> 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.)

It's not forbidding single label domain names.  It's forbidding
searches crossing administrative boundaries.  Has anything really
changed since RFC 1535 was published to make that *safe*?

Have 'COM' or '.' in the search list was bad when RFC 1535 was
published.  Nothing has made having either of them in a search list
any better since.  With the opening up of '.' to more players has
made it worse.

> >   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.
> 
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Mark Andrews, ISC
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