Touted as "the open source firewall," you'd expect T.REX Firewall to be completely open source. But for the latest release of the product (version 2), no source is available. The firewall itself is a ...

At first glance, stateful packet filtering appears to have conquered the firewall world, both in terms of market share and mind share. The list of products based on stateful packet filtering is a long ...

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 ...

Consider the venerable Web proxy—back when the Internet was new to most of us, setting up a Web proxy was a convenient way to grant users of an otherwise non-Internet-connected network access to the ...