Hi,

> Hi all.  I'm using Linux and ipchains as a packet filter for my firewall.
> I'd like to protect my external DNS server from being used to do
> unauthorized zone transfers, as well as unauthorized queries.

I think You look at the problem from the wrong side.
All the options you mentioned can be configured in the DNS Server.

Greetinx
        Thor
--
In a World without fences who needs Gates ?
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