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Re: DNS Blocking

  • From: Dan Mahoney, System Admin
  • Date: Thu Aug 19 15:28:55 2004 
On Thu, 19 Aug 2004, Paul Vixie wrote:


[email protected] ("Dan Mahoney, System Admin") writes:


What I was basically asking for was a "silently drop queries for X-domain"
option.  But one doesn't exist in bind.

take a look at www.as112.net to see what happens to queries for
10.in-addr.arpa and its brothers.  you can easily set up a zone
that will just confuse and make errors for whoever queries it:

       @          SOA  localhost hostmaster.localhost
                  NS   localhost
       localhost  A    127.0.0.1
       *          MX   0 localhost
                  A    127.0.0.1

(the specific name "localhost" is nec'y because glue searches
aren't required to find wildcards.)

if you put a zone like that in place on a server that's receiving
unwanted queries for some zone, they will soon stop, or not.  you
win either way -- the queries stop, or you laugh your ass off.

There weren't rfc1918.

-Dan


--
Paul Vixie


--

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--Snap, "The Power"

--------Dan Mahoney--------
Techie,  Sysadmin,  WebGeek
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ICQ: 13735144   AIM: LarpGM
Site:  http://www.gushi.org
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