Blocking queries to & responses from a given NS

Ronan Flood ronan at
Mon Apr 17 19:35:28 UTC 2006

usenet at wrote:

> If I could effectively block queries being sent to their NSs I could
> lessen the impact their phishing/popup sites have on my userbase.  I
> could simply do add a couple rules to the host-based firewalls on my
> NSs or I could block it at the network level with an ACL.  I'm
> wondering what the Bind method is.

Sounds like you want the "blackhole { ... };" option.

                      Ronan Flood <R.Flood at>
                        working for but not speaking for
             Network Services, University of London Computer Centre
     (which means: don't bother ULCC if I've said something you don't like)

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