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 ...

A firewall is often the heart and soul of desktop security. With a firewall, you can block or allow traffic in and/or out of your computer. Of course, it’s the incoming traffic that you need to be ...

You may have heard mention of DD-WRT on the PC Perspective Podcast, which enables you to flash a compatible router into a Linux based firewall with significanly more ...

In today's open source roundup: Six GUI firewall management applications in Linux. Plus: Linux Lite 2.2 released, and the story of how Kali Linux was created The command line is a powerful tool for ...

I've been writing a multipart series on building a transparent (bridging) firewall using Linux. Specifically, I'm using the distribution OpenWrt running on a Linksys WRT54GL broadband router, a ...

Building a firewall is something that easily can be done using a Linux machine. This article describes the basic steps involved in developing a firewall from scratch, using tools in Linux. It is ...

Initially, firewalld looks difficult to use, but it really isn't. Services and zones make it easy to put the pieces together and configure Linux firewalls. Although it also works on the netfilter code ...

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, ...

Simone Margaritelli, the VP of Research at Zimperium, has created a Linux port of Little Snitch, a wildly popular macOS firewall application. Named OpenSnitch, the Linux port works on the same ...