[dns-operations] DNS ANY requests / UltraDNS

Tony Finch dot at dotat.at
Thu Jan 10 14:32:59 UTC 2013

bert hubert <bert.hubert at netherlabs.nl> wrote:
> ANY queries serve a purpose (we use them to get A and AAAA addresses for
> nameservers in one go).

Wow, I think you have found a case where ANY queries are not likely to
lead to bugs! :-) The main problems with ANY are due to cache effects (but
you are talking to authoritative servers) and from lack of CNAME/DNAME
alias processing (but NS records pointing to aliases are broken anyway).

f.anthony.n.finch  <dot at dotat.at>  http://dotat.at/
Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at
first. Rough, becoming slight or moderate. Showers, rain at first.
Moderate or good, occasionally poor at first.

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