Looking for website filtering and captive portal for your business network at a very low cost? The KeexyBox open source project may be your solution. It combines in a single system, website filtering (by DNS), the captive portal for wifi, Internet access times, secure search on the main search engines and on-the-fly anonymous browsing via Tor. KeexyBox can filter millions of websites with just 1 CPU, 1 GB of RAM and 16 GB of hard drive. A Raspberry PI or a virtual machine is enough to install it!