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Re: recursive DNS issue
From: Bruno Wolff III <bruno () wolff to>
Date: Wed, 3 Mar 2004 10:27:26 -0600

On Wed, Mar 03, 2004 at 14:54:38 +1100,
  omifix omnifix <omnifix2001 () yahoo com au> wrote:
can anybody explain me what the problem is when my
external DNS server supports recursive DNS queries?

This allows simpler software and configuration so that there is less likely
to be a security problem.

People are telling me that a DNS server is prone to
cache poisoning when recursive DNS queries are

You shouldn't be using a cache that doesn't discard out of zone glue or one
that makes recursive requests to untrusted dns servers. This is going to be
a problem whether or not you combine a cache with a publishing server.
It may make things worse in that besides possibly hosing internal lookups,
you might also screw up the information about your domains given to other

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