These products can be downloaded and deployed on your own hardware, on a virtual platform, or in the cloud. Many of them sell pre-configured appliances as well if you like their feature-set or support, but don’t want to build your own machine.
We reviewed five products: ClearOS, DD-WRT, pfSense, Untangle and ZeroShell. We found that ClearOS, pfSense, and Untangle could be appropriate for home use all the way up to the enterprise environment.
(Insider Story)