[Mimedefang] MX -> 127.0.0.1

Sean Ware sware at midwaygames.com
Mon Sep 12 16:20:49 EDT 2005


Matthew.van.Eerde at hbinc.com (Matthew.van.Eerde at hbinc.com) @ 2005.09.12 12:57:30 -0700:
> KAM wrote:

> Checking the IP against all of these "bad" subnets is probably cheap
> computationally, as the expensive part is getting the DNS lookup in
> the first place. 

For a very complete list of "bad" subnets, check the Bogon IP Lists.

You can find information about them here:

    http://www.cymru.com/Bogons/
    http://www.completewhois.com/bogons/bogonips_lists.htm

Specific lists can be found here:

    http://www.cymru.com/Documents/bogon-bn-nonagg.txt
    http://www.cymru.com/Documents/bogon-bn-agg.txt
    http://www.completewhois.com/bogons/data/bogons-cidr-all.txt
    

....Sean

-- 
Sean Ware                          Midway Amusement Games, LLC
Senior Network Engineer                  2727 W. Roscoe Street
Information Technology Department       Chicago, IL 60618-5909
sware at midwaygames.com                           (773) 961-2000




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