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Idea from John Lister


Understanding Firewalls


This post will inform and educate readers while building Talas's authority. It would have the underlying message that a firewall is a “necessary but not sufficient” element of network and computer security. The post would cover: Basic definition/analogy: like a team of doormen/bouncers who check everything coming in; Ports and IP addresses; Balance of security and practicality; Software vs hardware firewalls; Packet-filtering methods: Stateless vs stateful; Specialist firewalls: proxy, NAT etc


John Lister