In January 2000, Check Point Software introduced a Linux port of its flagship product, FireWall-1. FireWall-1 is one of the best-selling products in the commercial firewall market. It now runs on five ...

Firewall logs. There's never enough time to review them, but you can't ignore them. Here's one way to look for malicious connections without spending a lot of time at it. Firewall logs always contain ...

Check Point FireWall-1 is the 800-pound gorilla of the commercial firewall industry. Check Point Software Technologies has ported its popular, sophisticated and relatively easy-to-administer firewall ...

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, ...

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 ...

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 ...

When I started writing this column in autumn of 2000, I had the day job of firewall engineer. I enjoyed that type of work, but I was enough of a big-picture kind of guy to be aware that every year, ...