DAP reads data using an input plugin, transforms it through a series of filters, and prints it out again using an output plugin. Every record is treated as a document (aka: hash/dict) and filters are used to reduce, expand, and transform these documents as they pass through. Think of DAP as a mas...

A gem for interacting with the GeoIP2 webservices and databases. MaxMind provides geolocation data as downloadable databases as well as through a webservice.

Embargoed blocks all visitors from Russia from your Rails application, displaying a pro-Ukraine message instead.

An offline GeoIP CLI filter for Apache (common, combined) logs. It's like grep but with a knowledge about what data an ip holds. Requires MaxMind's GeoLite2 DB (GeoLite2-City.mmdb) installed.

Logstash Filter Plugin for IPinfoDb

Somewhat more radical filters designed to decimate malicious requests during a denial-of-service (DoS) attack by chopping their connection well before your Rack app wastes any significant resources on them – ouch! The filters have been proven to work against certain DoS attacks, however, they mi...