[dns-operations] NXDOMAIN vs NODATA for suffixes of existing name

[Mark Andrews]

> On Fri, Apr 14, 2006 at 02:27:09PM +0200, Florian Weimer wrote:
> 
> > Apparently, the issue boils down to the question whether the label "b"
> > exists under example.net. if there are are records for
> > a.b.example.net.  I think it does (and BIND 9 happens to agree with
> > me, although this behavior changed in the past IIRC), but I can't find
> 
> some earlier BIND9 (< 9.3) versions had a bug and did not deal well with
> empty non terminals. Another reference that (the) Ed(itor) was too shy to
> mention is draft-ietf-dnsext-wcard-clarify (in RFC Editor queue),
> esp. section 2.2.2.
> 
> -Peter
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	RFC 1034 and RFC 2535 were in conflict over what the rcode
	should be.  Early version of BIND 9 followed RFC 2535.

	RFC 2535 said that queries for *all* names in a NXT span
	returned name error (NXDOMAIN). 

	Mark
--
Mark Andrews, ISC
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