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 ...

In this Recipe, I'll explain both the options for firewall protection and the differences between hardware and software implementations. By the end, you should be able to point a client to the ...

We list the best Linux firewalls, to make it simple and easy to set up and manage a more advanced firewall for your Linux PC or IT network. A dedicated firewall is the first line of defense when it ...

Last month, I kicked off a series of articles on transparent firewalls, beginning with a brief essay on why firewalls are still relevant in an age of Web applications and tunneled traffic. I also ...

The Internet is a big, scary place, and so we must protect our small business networks with strong, reliable firewalls. Firewalls can range from a simple gadget that keeps bad data packets out of ...

Firewalls, both hardware and software, protect computers from hackers and other online threats by blocking dangerous pieces of data from reaching the system. While hardware firewalls offer ...