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Color Bars in htop – What Do They Mean?

Ever wondered what all the red, green, orange, aqua and dark blue bars mean in htop? Even if you are not familiar with htop, this article will introduce you to the great Linux task manager and it’s color key….

How to mount a QEMU virtual disk image

Let’s say you discover critical business data in a legacy DOS spreadsheet file, and Excel can’t read the file. If the legacy program originally ran on DOS, you might boot a copy of FreeDOS, and install the legacy program ther…

How to use QEMU to boot another OS

That old legacy system is gone, never to be heard from again. Right? But what do you do on the fateful day that someone needs to access data that’s trapped in an old legacy application? If modern applications can’t read the d…

What’s New in Ubuntu 20.10 ‘Groovy Gorilla’

Ubuntu 20.10 “Groovy Gorilla” is here! Released October 22, 2020, the Gorilla is all about minor tweaks, rather than groundbreaking new features. As an interim release, it also doesn’t have long-term support. So, is it worth…

What Is Docker Compose, and How Do You Use It?

Docker Compose is a tool you can use to centrally manage the deployments of many different Docker containers. It’s an important tool for any application that needs multiple microservices, as it allows each service to easily b…

How to Use the seq Command on Linux

The Linux seq command generates lists of numbers in the blink of an eye. But how can this functionality be put to practical use? We’ll show you how seq might come in handy for you.

What Is chroot on Linux and How Do You Use It?

The chroot Linux utility can modify the working root directory for a process, limiting access to the rest of the file system. This is usually done for security, containerization, or testing, and is often called a “chroot jail…

How to Install Linux

Want to install Linux? It’s an easier process than you might think! You can even try Linux on your PC before you install it. If you don’t like it, just reboot and you’ll be back to Windows. Here’s how to get started with Linu…

What Is Linux Kernel Live Patching?

Applying critical security updates is important to keeping your Linux server safe from potential attackers, but it can cause downtime, which isn’t good either. Live kernel patching can apply important kernel updates without t…

How to Set Up an HAProxy Load Balancer

HAProxy is an open source load balancer, capable of balancing any TCP based service. It’s commonly used for balancing HTTP, and can help solve traffic problems on your web server. Here’s how to set it up….
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