How to Configure Linux for U2F Authentication

In my last post, I wrote about the benefits of U2F – Universal Two-Factor Authentication. Here are the three phases of installing it as the second factor on a Linux VM. For this article, I assume you have a Linux VM (or computer) configured with access to a USB port. I did this more as […]
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Take All Your Music To Linux

“I own many CDs”, the Sphinx said. “I listen to music all the time. But I never play my CDs. What is happening?” That’s easy, a minor-league Sphinx question at best. She ripped her CDs. She used software to read the audio data, convert it to a compressed format, and store the songs as files […]
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Do You Know the New Linux Networking Commands?

Back in April, I explained the new network interface names. Instead of eth0 it’s something like enp0s4 or p7p1. Let’s see how to check the settings. Run these commands on your system and play along! Physical Devices First, what are the network class devices? This system has two Ethernet interfaces: $ ls -l /sys/class/net total […]
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How to Practice Linux Skills for Free

Colleagues and friends often ask me how they can learn or practice Linux when they only have Windows at work and a single family Windows computer at home, for free. That’s a good question, and there are a couple of different answers. Before we get to the free methods, I want to acknowledge that there […]
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What do Clocks, Cars, and Warships have in Common?

A few months ago we had Daylight Savings Time. My parents were delighted to discover that “the clock” in their car automatically adjusted itself, as did their computer. But now they had to change the two clocks in their bedroom, the two clocks in the kitchen, and several others around the house. How did the […]
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