pfBlockerNG, the next generation of pfBlocker, is a relatively new package that blocks countries and IP ranges. It was designed to combine the features of Countryblock and IPblocklist. pfBlocker is a good package to have if you are running an email server, as it allows you to quickly block the top countries from which spam originates. In addition, you do not even need to come up with your own block lists, as there are several free block lists available on the web.
Once you have installed pfBlockerNG, you need to run geoipupdate in order to update the GeoIP2 databases, which provide information about users, including country and approximate location. To do so, type in the following at the console or at Diagnostics | Command Prompt ...
