This script aims to create a traditional GeoIP-CSV database from GeoIP's GeoLite2 database files, for use with xtables-addons' xt_geoip module.

Upstream work on the original conversion scripts in xtables-addons is in progress as well:

https://sourceforge.net/p/xtables-addons/xtables-addons/ci/master/tree/geoip/

For conversion, it is required to download an additional file with country names from Geonames.

Whether or not this software violates any Maxmind license is unclear. Be sure to read and understand the disclaimer in the LICENSE.txt file before trying to use this software!

THIS IS NOT PRODUCTION SOFTWARE; BE SURE TO READ AND UNDERSTAND THE DISCLAIMER IN THE LICENSE.txt FILE!!!

• curl

• unzip

• Perl

• Perl module NetAddr::IP

• A valid geolite2 license from Maxmind

/usr/lib/xtables-addons/xt_geoip_dl
/usr/lib/xtables-addons/xt_geoip_build -D /usr/share/xt_geoip *.csv

• create geolite2.license with your correct license information

cd /usr/local/src/GeoLite2xtables/
./00_download_geolite2
./10_download_countryinfo
cat /tmp/GeoLite2-Country-Blocks-IPv{4,6}.csv |
	./20_convert_geolite2 /tmp/CountryInfo.txt > /usr/share/xt_geoip/GeoIP-legacy.csv
/usr/lib/xtables-addons/xt_geoip_build -D /usr/share/xt_geoip /usr/share/xt_geoip/GeoIP-legacy.csv

None, thanks to an insane speed fix by John Hood, github.com/cgull.

• Use Text::CSV for parsing the input data.
• Merge/adopt cgull's geoipnames feature.