См http://nginx-win.ecsds.eu/download/ngxLuaDB-1.1.zip из http://nginx-win.ecsds.eu/ и пример "/ngxLuaDB/conf/nginx GEOIP-MYSQL with Cache Non-Blocking.conf" Posted at Nginx Forum: https://forum.nginx.org/read.php?21,266886,266928#msg-266928