If you have ever tried to implement one of the hotspot HowTos on this and other sites, it might have dawned on you that this is not an easy feat to accomplish. Amazingly most solutions also leave out the most important part – how to get paid by the punters using the hotspot. Some will offer prepaid solution or access tickets that need to be printed, but this will require staff being involved on the premises. And in particular, once you want to offer a professional service and not just a toy concept it gets tricky – and expensive. Just imagine all the servers you need to provide redundant and load balanced freeradius, mysql and web servers. It is generally not worth the effort and expense for just one hotspot – unless of course you are willing to accept outages, unhappy customers etc.

This how-to explains the process of setting up a FreeBSD system that will act as a wireless router (as well as a wired router) that takes advantage of the ported version of OpenBSD's PF packet filter.

This tutorial is about wardriving using GPS. It explains how to install Garmin Etrex on Ubuntu and how to configure it. It also shows how to use Garmin with GPSDrive and how to convert the data to an xml file which can be imported by Google Earth.