You need to understanding routing tables if you're going to do any kind of network troubleshooting. Let's take a look at what Linux commands can tell you about how your system is making connections.

Editors' note: This article was first published on March 26, 2013 and updated on July 1, 2016 with up-to-date information. It might seem like a daunting task to set up a new home router. But it ...