bind: blackhole for invalid recursive queries?

Posted by Udo G on Server Fault See other posts from Server Fault or by Udo G
Published on 2012-10-15T14:01:36Z Indexed on 2012/11/02 17:07 UTC
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dns

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bind

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ddos

I have a name server that's publicly accessible since it is the authoritative name server for a couple of domains.

Currently the server is flooded with faked type ANY requests for isc.org, ripe.net and similar (that's a known distributed DoS attack).

The server runs BIND and has allow-recursion set to my LAN so that these requests are rejected. In such cases the server responds just with authority and additional sections referring the root servers.

Can I configure BIND so that it completely ignores these requests, without sending a response at all?

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