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 ...

Effective troubleshooting requires that you know how to break a problem into pieces, track down evidence, and that you understand your systems and applications — as well as the tools at your disposal ...

Troubleshooting anything comes with its own set of challenges, and in the case of Linux and Unix, it’s helpful to have a practical guide to the tools available to make the job easier. This is such a ...

In this final installment of the series, I present examples based on actual cases I’ve encountered where these tools were utilized to solve the problem. In the first example, a small network with a ...

Network protocols are formal standards and policies consisting of rules, procedures, and formats that define how data is exchanged over networks. They ensure that devices can communicate effectively, ...

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 ...

But troubleshooting a network when you're not constantly on-site can be difficult, especially when the problems are intermittent (as they frequently are). One alternative is to temporarily connect a ...

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