Hello everybody, (second try, since the first mail somehow didn't arrive) I've just uploaded a caching DNS resolver library, which also includes a command line utility for quick mass DNS resolution: http://hackage.haskell.org/package/dnscache Although I've tested it throroughly it's still in beta phase. Feel free to play around with it. Feedback is highly appreciated. Thank you. Greets, Ertugrul -- nightmare = unsafePerformIO (getWrongWife >>= sex) http://ertes.de/