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Blog posts tagged in firewall
18
Jun

You Need Next-Generation Firewalls!

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Wikipedia defines a firewall as: A software or hardware-based network security system that controls the incoming and outgoing network traffic based upon a set of rules. A firewall establishes a barrier between a trusted, secure internal network and another network (e.g., the Internet) that is not assumed to be secure and trusted.

Traditional, first generation firewalls, allow traffic in and out of a network based upon ports and protocols rules. These firewalls only operated up to layer 3 of the Open System Interconnection (OSI) reference model.

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