Avoiding being used as DDoS reflector.

[Leonardo Rodrigues Magalhães]

Nathan Ollerenshaw escreveu:
>
> I have an Authoritative BIND server. It is configured to only allow 
> recursive queries from localhost, with recursion disabled for any 
> remote clients.
>
> If you attempt to perform a recursive query against this server, it 
> will respond with a "query refused" packet, as this is what BIND does 
> if you try to recursively query a server configured to disallow 
> recursive queries.
> [ ........ ]
> Any ideas? Anyone facing this same problem found a solution? I'd be 
> glad to hear it :)
>

    if you're running authoritative only for localhost and is not 
answering network requests at all, then you could probably firewall 
incoming packets to UDP 53 port !!! Let the responses in, let the new 
requests out.

    i cant imagine anything simplier than that.

-- 


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	Leonardo Rodrigues
	Solutti Tecnologia
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