bind9/bin/tests/system/geoip2/data/README.md

Test MMDB databases

This directory contains test versions of the GeoIP2/GeoLite2 CIty, Country, Domain, ISP, and ASN databases. The .mmdb files are built from the corresponding .json source files; to regenerate them, modify the source files and run perl write-test-data.pl.

This script is adapted from one in https://github.com/maxmind/MaxMind-DB. It depends on the MaxMind:DB:Writer module, which can be found in CPAN or at https://github.com/maxmind/MaxMind-DB-Writer-perl .