Security continues to be the biggest concern for IT managers and, in turn, design engineers developing firewall systems. With more viruses popping up and hackers attacking more often, corporations are ...

Have them all ride the same VLAN somewhere and firewall it at one point, for the "Library network". Everything inside can stay Layer2 and communications to the rest of the network goes through a ...

Is your firewall infrastructure coming up for a hardware refresh? More importantly, do you even know if it is time to upgrade? If you answered "no" to those two questions, then it might be time for a ...

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 ...

The Linux kernel includes some of the most powerful and flexible firewall code in any general-purpose operating system. This code is called Netfilter, though most of us refer to it by the name of its ...

Firewalls can be difficult to manage. Often times rules lack granularity due to a lack of understanding of the application traffic or trying to keep up with the speed of business. Firewalls get more ...