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.

Network troubleshooting can challenge even the most experienced IT professionals. New issues can crop up any time a device is added or the network changes, and it can be difficult to determine exactly ...

Netstat (Network Statistics) is a command-line tool for monitoring and troubleshooting computer network issues. This tool shows you all your device’s connections in as much detail as you need. With ...

This tip is excerpted from "Network troubleshooting and diagnostics," Chapter 4 of The Shortcut Guide to Network Management for the Mid-Market, written by Greg Shields and published by ...

Implementing 802.1X authentication, which includes everything from setting up a RADIUS server to keeping end users connected, isn't easy. Implementing 802.1X authentication, which includes everything ...

Modern network connectivity is light years ahead of what it once was. Even though it's much more reliable than it was in the 1990s, issues still come up -- which is why I'm glad that Linux includes a ...

Computer networks are critical parts of almost every organization. Computer network and system administration (CNSA) refers to the day-to-day operation of these networks. CNSA professionals organize, ...

I have problem in my networking strategies. After 6:30 PM my network goes down. We are not able to get the mapped drives on local machines and we cannot save anything on our server. We have a Dell ...

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 ...