Tutorials

High Reliability Infrastructure Migrations

On Tuesday I gave a talk at KubeCon called High Reliability Infrastructure Migrations. The abstract was: For companies with high availability...
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How to Set Up SELinux Right, the First Time

When you need to run Linux in an especially secure environment, SELinux is the answer. But it takes some know-how to get the hypersecure Linux...
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ss command
Learn how to use the ss command to gain information about your Linux machine and see what's going on with network connections.

An Introduction to the ss Command

Learn how to get network information using the ss command in this tutorial from the archives. Linux includes a fairly massive array of tools...
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How To Install Cinnamon Desktop On A Chromebook With Crouton

Crouton allows installing Ubuntu or Debian in a chroot environment on any Chromebook model, without removing Chrome OS. You can read more about...
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lets encrypt
Unencrypted HTTP sessions are wide open to abuse; lock them down with Let's Encrypt.

Protect Your Websites with Let's Encrypt

Learn how to use Let's Encrypt in this tutorial from our archives. Back in the bad old days, setting up basic HTTPS with a certificate authority cost...
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New Deepin Linux Gets Even Better With Touchscreen Gesture Support

I still stand behind my claim that Deepin is one of the slickest and most beautiful desktop Linux distributions on the planet. Beyond that, it...
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How to Use Netcat to Quickly Transfer Files Between Linux Computers

There’s no shortage of software solutions that can help you transfer files between computers. However, if you do this very rarely, the typical...
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Distributed Systems: A Quick and Simple Definition

The technology landscape has evolved into an always-on environment of mobile, social, and cloud applications where programs can be accessed and used...
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DNS (Domain Name Service): A Detailed, High-level Overview

How’s that for a confuding title?  In a recent email discussion, a colleague compared the Decentralized Identifier framework to DNS …suggesting they...
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Linux Commands for Measuring Disk Activity

Linux systems provide a handy suite of commands for helping you see how busy your disks are, not just how full. In this post, we examine five very...
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