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Re: Self-referential whois queries


From: Rubens Kuhl <rubensk () gmail com>
Date: Thu, 10 Feb 2011 18:38:47 -0200

I'm noticing an increase in getting "query rate exceeded" at whois
services that might be connected to a symptom described by ARIN at
NANOG 48/ARIN XXV and ARIN XXVI where machines ask for the whois
record of their own IP address.

Are there any clues of what is causing this ?

Some spam bots do these automated self-referential queries, but if you
are seeing those rate exceeded messages when you perform queries from
your client, you may simply be probably bumping up against a limit for
the source host or network in question.

The ceil seems to be at the joint whois chain, where a RIR can ask
another RIR or NIR about an IP.

RIRs/NIRs answering such queries with "It's you!" or "Self-referential
queries not allowed" would be too harsh or a reasonable approach ?


Rubens


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