Learn how firewalls have progressed from simple packet filtering to more sophisticated application-level filtering. Webopedia.com defines a firewall as “a system designed to prevent unauthorized ...

Hopefully this primer on Stateful Packet-Filtering Firewalls and the Cisco PIX appliance has been helpful to you. This entry, along with my earlier entry is meant to focus your studies with regard to ...

Every organization that connects its network to the Internet needs a firewall to protect against intrusions and attacks from "out there." And today's security vendors make firewall products to fit ...

A next-generation firewall analyses network traffic and allows or denies traffic transit depending on set firewall policies based on traffic characteristics. Next-generation firewalls can read data ...

Floodgate-Packet Filter is an embedded firewall from Icon Labs that allows networked devices to control the packets they process. It protects against potentially malicious attacks by filtering packets ...

The humble firewall has come a long way since the packet-filtering days of yore. The first firewalls were developed by the Digital Equipment Corporation (DEC) back in the late 1980s. These early ...