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Date: Fri, 31 Mar 2006 13:27:20 -0500 From: "Geo." <geoincidents@....net> To: <bugtraq@...urityfocus.com> Subject: RE: recursive DNS servers DDoS as a growing DDoS problem > What is stopping you from running your own local DNS server? What is stopping you from running your own SMTP server? A port 25 block? Well if an ISP doesn't want to play whack-a-mole with unsecured dns servers popping up every day do you not think it likely that they will resort to the same techniques they used for smtp? Granted a port 53 inbound block would make more sense for the current example but just like bots started running their own SMTP engines I see the dns flood model changing to fit the new landscape. Geo.