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 to IP addresses. Databases are built and maintained to link the following details to 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]