Mailing List Message #14602
From: Bill Cole <>
Subject: Re: Am I doing this right????
Date: Mon, 28 Jun 2004 12:25:39 -0400
To: SIMS Discussions <>
At 11:57 AM -0400 6/28/04, Charles Yeomans  imposed structure on a stream of electrons, yielding:
On Jun 27, 2004, at 7:53 PM, Bill Cole wrote:

At 3:46 PM -0600 6/27/04, Lewis Butler  imposed structure on a stream of electrons, yielding:
On 27 Jun 2004, at 12:03, Bill Cole wrote:
I no longer actually use the SIMS internal blacklist because my local blacklist outgrew the capacity of SIMS.

Out of curiosity, how are you blacklisting outside of SIMS?

I run a local DNSBL.

As I understand it, I can define DNS records of the form --> to define  as a bad address.

Not quite. Try a . instead of the @

Is there some similar syntax for blocking a CIDR address range?

That depends on the DNS server. For BIND, there is no generalized CIDR wildcarding but there is domain wildcarding so you can do things like this:

* IN A

BIND also has a $GENERATE directive for DNS records to do range-based wildcards.

Other name servers can do other things.
Bill Cole                        

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