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 ...

Network troubleshooting doesn’t have to be a panic-driven guessing game. By using structured methods like the OSI model and core diagnostic commands, you can pinpoint issues quickly. Whether you’re at ...

If you find your thrill delving into the networking side of Unix, you'll find that there are lots of commands to give you all the insights you might want. I will never forget my first ping. Working on ...

Click for a PDF with this and four other essential Linux articles. And, if you’ve ever heard anyone say that for Unix, everything is a file, you might not be too surprised to learn that lsof works ...

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 ...

I pulled up the microsoft help file on it but am unfamiliar with some of the terms.<BR><BR>Oh yeah,the network, W2K server with domain and windows 2000 pro workstations.<BR><BR>The net time command ...

From the OSI and TCP/IP models to subnetting, commands, and real-world fixes, understanding networking fundamentals is key to building, maintaining, and troubleshooting secure, efficient systems. By ...

OS X is resilient. Its UNIX underpinnings are mature, tested, and -- more importantly -- stable. It's a modern OS that's as flexible as it is powerful, limited only by the end users operating the ...

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 ...

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.