Back when I worked in the Network Operations department at one of my previous jobs, we used to chuckle when a customer would call us reporting that “the Internet is down.” Now, I realize that there ...

Linux systems provide a lot of useful commands for reviewing network configuration and connections. Here's a look at a few, including ifquery, ifup, ifdown and ifconfig. There are a lot of commands ...

Ubuntu’s included NetworkManager software aims to make your network connections “just work.” Nevertheless, sometimes thing go awry. There are times you have to adjust or change your connection ...

Whether you’re managing a network at work or just watching out for your home systems, it’s important to understand your network connections–how you communicate with public systems and those on the ...

This column is the third in a series dedicated to one of my favorite subjects: troubleshooting. Because my column generally is aimed more at tips and tricks and less on philosophy and design, I don't ...