[dns-operations] NXDOMAIN vs NODATA for suffixes of existing name
fw at deneb.enyo.de
Fri Apr 14 09:15:54 UTC 2006
Suppose we've got the following zone contents:
example.net. 1728000 IN SOA ...
1728000 IN NS ....
a.b 1728000 IN A 192.0.2.1
A query with QNAME=b.example.net., QTYPE=A, QCLASS=IN returns NODATA
with some authoritative server implementations, and NXDOMAIN with
others. IIRC, the former is more correct, but I can't find out why.
RFC 1034 is almost silent on this issue (although the algorithm in
section 4.3.2 does not require returning NXDOMAIN in this case). I
used to think that RFC 2308 required NODATA, but after reading
section 2.1, it seems that it doesn't, either.
Could anybody please provide the definite reference in favor of
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