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 ...

Last week’s column introduced NTP, the Network Time Protocol and the concept of highly accurate timekeeping. While numerous commands exist to help system administrators maintain fairly accurate time ...

The UNIX ping command lets you test network servers and latency. Here's how to use it in the macOS Terminal app. The UNIX ping command is a tiny UNIX network tool that allows you to test your network, ...

A long time ago, when people dialed (as in telephones) into Unix machines in some closet or college campus, they used a command called “w” to see who was also on the machine. You can use this command ...

If there’s one thing that every Unix systems administrator knows, it’s that there’s always more than one way to get something done. Some ways of solving a problem are more efficient than others. Other ...