The process of troubleshooting your network involves a methodology that starts with cabling and works through the OSI model to the application layer. The network devices have a network cable that ...

Click for a PDF of this and four other essential Linux articles. Generally not taught in any formal classes, troubleshooting is one of the things that most of us end up picking up the hard way. How to ...

Figure 1. Link and activity lights can tell you a lot about the connection between two network devices. All network architectures rely upon a physical (or RF) connection between devices.