Resolving DNS Asynchronously

You're viewing a comment by Abottleinfrontofme Frontallobotomy and its responses.

December 26, 2009, 15:56

There is one more sophisticated way, that I know of, for doing bulk DNS lookups as opposed to the round robin approach, which assuming you have increasing volumes of queries, will eventually overwhelm, or at least generate complaints, from the weakest DNS server in the chain. If you are only looking up hundreds of thousands and not hundreds of millions of records, the round robin approach will probably be ok.

Another interesting DNS topic would be a discussion of recursive DNS resolutions. Taking the IP address and resolving the in-addr.arpa record.

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