geoip
From thelinuxwiki
installation (gentoo)
# emerge -av --quiet dev-libs/geoip
default data directory
/usr/share/GeoIP
usage examples
check database versions
# geoiplookup -v /usr/share/GeoIP
lookup country only
# geoiplookup -f /usr/share/GeoIP/GeoIP.dat 31.192.109.7 GeoIP Country Edition: RU, Russian Federation
lookup city only
# geoiplookup -f /usr/share/GeoIP/GeoLiteCity.dat 142.11.235.1 GeoIP City Edition, Rev 1: US, OK, Oklahoma, Tulsa, 74103, 36.155399, -95.993896, 671, 918
lookup ASN only
# geoiplookup -f /usr/share/GeoIP/GeoIPASNum.dat 216.77.188.73 GeoIP ASNum Edition: AS6389 BellSouth.net Inc.
cron script to update the free databases
#!/bin/bash curl http://geolite.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz | gzip -d > /usr/share/GeoIP/GeoIP.dat curl http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz | gzip -d > /usr/share/GeoIP/GeoLiteCity.dat curl http://download.maxmind.com/download/geoip/database/asnum/GeoIPASNum.dat.gz | gzip -d > /usr/share/GeoIP/GeoIPASNum.dat