These past few months I have been looking at firewalls and intrusion prevention systems that are open source and can run on commodity hardware. I have been wanting to add an extra layer of protection to my home network and that led me to write this article. The most popular IPS by far is Snort since it is open source and free. While looking at open source firewalls, I came across pfSense which supports Snort and it was the best choice for...

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