What is a Firewall?
Kathy Barta | 23 October 2006 |
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A Firewall is a combination of hardware and software that functions in a networked environment to prevent some forbidden communications and or viruses. This is similar to the basic function of a firewall in building construction. It controls connectivity between different “zones of trust”, which include the Internet (a zone with no trust) and internal networks (zones with high trust). Firewalls are frequently used to prevent unauthorized Internet users from accessing private networks connected to the Internet, especially intranet. It is a first line of defense against these types of unwanted users.
Kathy Barta - Blizzard Internet Marketing, Inc.
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