I've been using Linux for what seems like forever. Over the years, I've noticed that I use the command line less and less, because the GUIs have just gotten so much better. Even still, there are ...

Need a jump start on Unix networking? Whether you're working on your home network or setting up systems at work, here are some basic Unix commands and insights that might prove helpful. Once upon a ...

Every Linux enthusiast or administrator, at some point, encounters the need to configure or troubleshoot network settings. While the process can appear intimidating, with the right knowledge and tools ...

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, ...

If you’re considering adding Linux to your data center, or your company is looking at promoting you to become their first (or next) Linux admin, you probably understand there are lots of commands to ...

This sample chapter from the only authorized companion guide for the Cisco Networking Academy Program introduces newcomers to the basic concepts and components of modern computer networks. The chapter ...