[dns-operations] Odd query pattern

[Florian Weimer]

* Eric Osterweil:

>> Kind of looks like someone trying to do NSEC[3] walking and getting it
>> horribly wrong?

> Very strange, what RR type are the queries for?

They are mail-related: MX, TXT, AAAA and A.  However, this could just
reflect the typical query load for the zones in question, and the fact
that the initial query in each sequence receives a NODATA response.

-- 
Florian Weimer                <fweimer at bfk.de>
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