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Showing 43 results for the search term "linux boot".


How Does Linux Boot? There’s More To It Than You Might Expect

With Linux, you can just turn it on, wait a few moments, and start doing powerful things! But if you are going to be responsible for critical systems, you need to know how they are supposed to work so you can recognize and fix problems. At its very simplest, we’re looking at this sequence: Firmware […]



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 […]



Do You Know the New Names for Linux Network Interfaces?

Do you know how to check the IP address of a Linux server? “Of course!”, you say, and you type this: $ ifconfig eth0 Not anymore! Both the command ifconfig and the interface name eth0 have been obsolete for a few years now. However, many organizations still use something like Red Hat Enterprise Linux 6, […]



4 Easy Ways to Practice Your Linux Skills

A few times now, a student taking Learning Tree’s Linux server administration course has told me that their Linux experience is rather limited. Specifically, that they took the introductory user course about a year ago and they “haven’t done much since.” Me: “Uh-oh. So, how much have you used the command line since that course?” […]



How To Add Virus Scanning to Linux

Isn’t Linux virus-free? By the classic meaning of “virus”, yes. But there is malware for Linux. But Shouldn’t We Worry? What about the more traditional sense of “virus” we worry about on Windows operating systems? What about the risk posed by hostile data hitting user platforms through e-mail, web, and removable media? To the extent […]


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