> That is, if we know that a symbolic address is malign, is there some way
> to
> refuse to resolve it or change its resolution when an internal users asks
> for
> its resolution?

Two different ways of doing this:

- configure your BIND to believe it's authoritative for the address(es) in
question by configuring it as a zone

or, if you run a recent enough version of BIND:
- set up RPZ, it really is easy to implement (and has the advantage of
scaling nicely with multiple servers as well - configure the RPZ zone
somewhere and let normal zone transfers copy it to the other servers you
have as well)

Regards
Eivind Olsen
eiv...@aminor.no


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