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LXer: Whats wrong with every open source firewall/router on the market now

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http://www.linuxquestions.org – Published at LXer: I once read that a network firewall was as much a central point for getting visibility into your network as it was a point for restricting and securing your network. It is my personal belief that these things go hand in hand. How can you secure your network if you don't understand what is actually going on inside it? how can you differentiate between what is good and bad traffic, if you can't actually see the traffic? A few years ago, I invested a serious amount of time searching for an open-source firewall that I could insert into a network on some standard hardware and se (HowTos)