10 ways to check ports in Linux to help troubleshoot systems Your email has been sent System and network troubleshooting often involves checking and obtaining information about ports to ensure ...

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 ...

This column is the second in a series dedicated to one of my favorite subjects: troubleshooting. Because my column is generally aimed more at tips and tricks and less on philosophy and design, I'm not ...

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 ...

There are certain Linux commands I consider essential. They range from networking, troubleshooting, and file viewing. They're also easy enough for new users to learn. Even though I've been using Linux ...

Computers are everywhere, and unfortunately, they're not quite as reliable as I'd like, given how integral they are to our day-to-day lives. I always carry a portable Linux installation on a flash ...

This article is excerpted from the book DevOps Troubleshooting: Linux Server Best Practices and is reprinted by permission of publisher Pearson/Addison-Wesley Professional. Many different problems can ...