This chapter looks at the management of firewalls. From the perspective of the small office/home user, the firewall is a single device that protects the home network from malicious traffic—it keeps ...

Do you feel secure when you open your laptop? But do you know what makes using your PC and browsing the internet so safe? Today, we’ll talk about a firewall – a basic but important part of any ...

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 ...

Firewalls monitor and regulate the data moving on and off your computer or network. They can keep criminals out while allowing legitimate network traffic in. Mac OS X comes with not one but two ...

Why waste money on an enterprise firewall when you can build your own from old PC parts?

At its most basic level, a firewall is anything that preventsunauthorized access to a computer. The firewall can be hardware orsoftware, and the protected computer can be a typical PC, ...

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 ...

Stories of compromised servers and data theft fill today's news. It isn't difficult for someone who has read an informative blog post to access a system via a misconfigured service, take advantage of ...