POE::Component::Client::DNS says it is a wrapper for non-blocking Net::DNS. It lets other tasks to run while something is waiting for a nameserver to respond, and it lets several DNS queries run in parallel.

merlyn recently wrote about using POE in IIRC Linux Magazine. The column might be available at his website.

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In reply to Re: How to do multiple dns queries ? by jaldhar
in thread How to do multiple dns queries ? by gnangia

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