Surfing the f-secure weblog I read the entry about Mailinator and its brand new Mailinator Spam Map. I liked it, and we decided to provided something like that on our own.

The next step is to provide realtime data in the new Visualisation Section, in order to do this we just wrote the GeoLocationManager and his two helpers geolocation-hostip and geolocation-geoip.

The problem was

• MaxMind GeoIP City we would need to run this costs 370$,
• hostip.info mysql database dump is >300 mb in size,
• sourceforge.net webspace is unable to connect other webpages using php fopen(),

so we were unable to resolve the ip's locations server side, and decided this is client side job.

geolocation-hostip is the standard resolver, makes use of hostip. If you want to pay for better, more accurate and reliable resolving data, buy MaxMind GeoIP City and use geolocation_geoip.

Now you can choose between two 'ip address to location resolving services', the free one (hostip) and the best one (maxmind's geoip).