Internet Help

A firewall on a computer network is similar to a firewall in an automobile. Just like a piece of metal can be used to separated the engine compartment of a vehicle from the passenger area, so a firewall on your network can be used to separate or protect you from dangerous traffic on the internet.

A firewall can be an appliance, or software that inspects traffic passing through it, and denies or permits passage based on a set of rules. These rules can become numerous and complicated. To simplify these rules, they are broken up into zones, and zones are broken up into categories like trusted and not trusted.

Without proper understanding, updates, and configuration a firewall can become ineffective.