convert GeoLite2-Country v2 DB to GeoIP v1 Country Edition .dat file
git clone https://github.com/emphazer/GeoIP_convert-v2-v1
cd GeoIP_convert-v2-v1
chmod +x geoip_convert-v2-v1.sh
./geoip_convert-v2-v1.sh LicenceKey [CustomName]
Access to the MaxMind GeoLite databases requires a (freely available) licence key, as of 2019-12-30
For more details, see: https://blog.maxmind.com/2019/12/18/significant-changes-to-accessing-and-using-geolite2-databases/