I published the following diary on isc.sans.org: “The Side Effect of GeoIP Filters“.
IP location, GeoIP or Geolocalization are terms used to describe techniques to assign geographic locations toÂ IP addresses. Â Databases are built and maintained to link the following detailsÂ toÂ IP addresses:
- Postal code
- Internet Service Provider
- Coordinates (Longitude, Latitude)
- Autonomous system (BGP)
There are many IP location service providers like Maxmind or DB-IP… [Read more]