This is useful if you have one of those annoying ISPs who take "not there" queries or otherwise performs "NXDOMAIN redirection". Simply add the IPs your ISP directs to you when you should get a NXDOMAIN, and Deadwood will convert any DNS response with one of the offending IPs in to a "not there" DNS reply.
Note that Deadwood will not convert cached entries this way; if you wish to use this feature and have used earlier versions of Deadwood, please delete your Deadwood cache first.
It can be downloaded for both CentOS Linux (as source code) and Windows here:
http://maradns.org/deadwood/testing
