I would use Powerdns instead of BIND. It's opensource and already comes with a geo backend (among others). http://doc.powerdns.com/geo.html#AEN6738 http://doc.

I would use Powerdns instead of BIND. It's opensource and already comes with a geo backend (among others). http://doc.powerdns.com/geo.html#AEN6738 http://doc.powerdns.com/geo.html#AEN6738 The doc says, Wikimedia uses PowerDNS' geo backend.