Because of Nginx, Piwik2 and ModSecurity2. To use GeoIP2, Nginx has to be built from source.
<a href="https://www.miyuru.lk/geoiplegacy">Geolocation database of [provider] converted by Miyuru Sankalpa</a>
Fun fact: DB-IP City IPv6/IPv4 Database takes more than 20GB of RAM to create.
In IPv6/IPv4 databases, IPv4 address are mapped as IPv6 address.
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