Traceroute is still a great tool, but mtr ("my traceroute") provides even more insights when you're looking into network routing problems. The mtr tool—“my traceroute”, originally “Matt’s traceroute” ...

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 ...

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 ...

Use the LiSt Open Files (LSOF) utility to track data flow related to ports, users, and applications. LiSt Open Files (LSOF) is a Linux utility that allows you to view current network connections and ...

There are quite a few tools that can help test your connectivity on the Linux command line. In this post, we’ll look at a series of commands that can help estimate your connection speed, test whether ...

If you are trying to build a router or access point, you’ll need to dig into some of the details of networking that are normally hidden from you. But, for a normal WiFi connection, things mostly just ...

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 ...

Welcome to our new series on how to build your own Linux-based network appliance. If you’re a small business owner with a shared Internet connection and some networked PCs, this is just what you need ...

“East is East, and West is West, and never the twain shall meet,” is a line from Rudyard Kipling’s The Ballad of East and West. It could also apply to Windows and Linux. If you don’t know what you’re ...

I just finished a new bridging firewall at work, and I'd like to do some testing on it to see how much network traffic it can really handle. Can anyone recommend any network testing tools that I could ...