I heard a rumor that PDNS already implements port randomization, and so is invulnerable (well, nearly) to the same degree that DJBdns is invulnerable to this attack. Can anyone tell me in what version of PDNS this started? Thanks, --Dean -- Av8 Internet Prepared to pay a premium for better service? www.av8.net faster, more reliable, better service 617 344 9000