vyatta
Vyatta pioneered the decoupling of routing and security software from proprietary hardware, creating the industry’s first and only platform-independent network operating system, Vyatta Network OS.
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Untangle
The Untangle Gateway, the world’s first commercial-grade open source solution for blocking spam, spyware, viruses, adware and unwanted content on the network, provides a free and better alternative to costly, inflexible proprietary appliances. Go to our site