Running your own DNSchanger proxies

On the other thread i read that some ISP are running their own proxies for infected host. That sounded interesting, so i googled around to find out how to do that and i could not find a HOWTO, so imagined up a solution myself, tested it in VirtualBox, and wrote it down in case anyone finds it useful or has another approach https://sites.google.com/site/cbyrne/dnschanger I don't plan to use this solution, but it was interesting to think about and may be a good starting point in the unlikely event that some VP pushes the panic button on Monday. CB