Learn how to keep your network secure without slowing it down or causing latency. Understand everything from unified threat management (UTM) and proxys to purchasing advice and firewall placement.

When I first started using Linux, back in '97, working with the built-in firewall was not something just anyone could do. In fact, it was quite complicated. Starting around 1998, if you want to manage ...

Firewall architectures have been changing for 35 years, sometimes to accommodate better technology and hardware, but just as ...

A firewall is software or hardware that sits between two networks -- typically, between your LAN and the Internet -- and allows some sorts of network traffic through while preventing others. It works ...

Mike Chapple is a teaching professor of IT, analytics and operations at the University of Notre Dame. Network firewalls are one of the mainstay security controls that organizations rely on to protect ...

Firewalls act as gatekeepers that regulate data flow between internal and external networks based on security rules, while antivirus tools detect malicious activity in a computer or network system ...

A variety of firewalls are available that examine different aspects of network traffic. All firewalls compare this traffic against a set of rules that mediate the flow of packets. As a business grows, ...

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 ...

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