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

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 ...

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 ...

Click for a PDF containing this and four other essential Linux articles. Both of the aliases below will list whatever files are open on your behalf when you are logged in. I suspect that few sysadmins ...

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 ...

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, ...

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