"Untangle delivers an integrated family of applications that help you simplify and consolidate the network and security products you need, in one place at the network gateway. The most popular applications let businesses block spam, spyware, viruses, and phish, filter out inappropriate web content, control unwanted protocols like instant messaging, and provide remote access and support options to their employees. Every downloadable application is pre-configured and guaranteed to work together.
* All applications run on one off-the-shelf server
* Pre-configured on-demand downloads
* Integrated administration and reporting
Open Source (and Free): The Untangle Gateway Platform and 12 of the applications that run on it are open source and free to use under the GNU General Public License v2 (GPL). This includes updates to signatures, block lists, and category lists, as well as upgrades to the applications themselves. The applications run on the Untangle Gateway Platform, which is also open source and free under the GPL."