limiting number of requests of a single hosts

Tony Finch dot at
Fri Jun 15 11:28:20 UTC 2012

Holemans Wim <wim.holemans at> wrote:
> I have 2 questions, one, is there a way  to rate-limit the amount of
> request a single client (the AD servers in this case) can have standing
> out against a bind server ? Kind of rate-limiting parameter for bind
> name server.

There isn't a way to do this in BIND. If you are running on Linux you
might try the iptables hashlimit module,

(The recently announced response rate limiting patch won't work for you
since it takes effect too late in the resolution process.

I'm afraid I don't have an answer to your other question.

f.anthony.n.finch  <dot at>
Plymouth, Northwest Biscay: Southwesterly 5 to 7, occasionally gale 8 in
Plymouth. Rough or very rough, occasionally high in west Plymouth. Showers.
Good, occasionally poor.

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