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 ...

Network firewalls were created as the primary perimeter defense for most organizations, but since its creation the technology has spawned many iterations: proxy, stateful, Web app, next-generation ...

In my last column, I sang the praises of application-layer proxy firewalls and introduced Balazs Scheidler's Zorp firewall suite, available in both commercial and free-of-charge versions. This column ...

If you're upgrading your firewall, or installing one on your network for the first time, you'll discover that firewall technology has changed a lot in the last several years. How do you select one ...

This chapter introduces the reader to firewall load-balancing (FWLB) concepts, technology, and designs. We will talk about motivations behind FWLB solutions, different types of firewalls, and how to ...

Shopping for an enterprise firewall can be intimidating if you’ve never done it before. However, with a little background knowledge, an understanding of firewall features, and knowing what questions ...