I made a video and wrote the article to give flexibility, means those who like reading they can read and those who want to watch and listen, they can see the video. I have tried and tested many and today I am going to share with you my top 5 Selections of hundreds that I have tested in last two decades. I have been advocate of open source systems since 2000 and today in particular I will emphasis on open source next generation firewalls that I have been using since 2005, when I first built a UTM box using Untangle. Though there are many Open source and free NGFW (Next Generation Firewall) Software that you can use to transofrm a bare-metal hardware appliance into a powerful and effective Unified Threat Prevention and Management Solution. What is NGFW (Next Generation Firewall) ?Īs per Gartner : “A next generation firewall ( NGFW) is, a “deep-packet inspection firewall that moves beyond port or protocol inspection and blocking to add application-level inspection, intrusion prevention, and bringing intelligence from outside the firewall.”
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