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Date: Tue, 26 Dec 2006 07:49:09 -0600
To: freebsd-questions@freebsd.org
From: Len Conrad <LConrad@Go2France.com>
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Subject: Re: Need to restrict DNS requests to just 5 per second
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>I need to restrict dns (udp) requests to not more than 3 requests per
>second from each client's IP.

restricting DNS query rate, if you can find a way, will probably slow 
your clients' operations very noticeably.

What problem are you trying to solve?

Len