Dear readers, I appear to have set a Paranoid Penguin record—six months spent on one article series. (It has consisted of five installments, with a one-month break between the second and third pieces.

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 ...

The ufw (uncomplicated firewall) represents a serious simplification to iptables and, in the years that it’s been available, has become the default firewall on systems such as Ubuntu and Debian. And, ...

WHEN LOOKING for an effective, inexpensive firewall solution, Linux firewalls do not often enter into the picture unless someone involved in the security planning process is a Linux guru. With the ...

It's no doubt that one of the leaders for network equipment is Cisco Systems. Newer Cisco devices are starting to use what Cisco calls its "="" operating="" system"="">, which is a customized flavor ...

I am about to deploy a Linux firewall to replace an end of life PIX. I know, not the same class but this is academia and I was given $0 for a budget. Right now the PIX has one line in and one line out ...

In this series of articles, I'm showing how to build a transparent firewall using OpenWrt (Linux) running on an inexpensive Linksys WRT54GL wireless router. In Part I, I explained why firewalls are ...