System Administration & Configuration

How to Check and Monitor CPU...

As a Linux administrator, it’s important to keep an eye on how your server (or servers) is performing. One way to measure its performance is to track the CPU usage. This will give you insight into the performance of the system as well as show how the hardware resources are being divided up across the various running services. In this guide, we’ll go over a few methods to check and monitor the CPU utilization on a...
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Programming & Scripting

How to create a selection menu using...

We all very often use bash scripts to automatize boring and repetitive tasks. Sometimes in our scripts we need to ask the user to perform one or more choices interactively: in this tutorial we will see how to use the Bash shell select statement to perform such operation in very few lines of code. In this tutorial you will learn: How to use the Bash select statement How to customize the select menu prompt How to...
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Ubuntu

How to Install the Latest Version of...

When it comes to converting and backing up video, there are few tools as powerful as Handbrake. It's long been a favorite among Linux users because it's simple to use, and it's capable of most video tasks. While you can find Handbrake in the default Ubuntu repositories, it's often outdated. This guide will walk you though enabling a PPA to get the latest Handbrake releases. In this tutorial you will learn: How to...
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Debian

Raspbian GNU/Linux upgrade from...

The upgrade from Raspbian Stretch to Raspbian 10 Buster is a relatively simple procedure. However, exercise caution, as there is always a chance to break the entire system. The fewer installed 3rd-party packages and services, the more likely you are able successfully to upgrade your Raspbian Linux system. What's New UEFI Secure Boot AppArmor enabled per default Optional hardening of APT Unattended-upgrades for...
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Kali Linux

How to install VeraCrypt on Kali Linux

For years, TrueCrypt was the gold standard in encrypting drives across platforms. TrueCrypt is gone now, but VeraCrypt is carrying on its legacy. It looks and works a lot like TrueCrypt did, and it's compatible with TrueCrypt partitions. Even though VeraCrypt isn't available in Kali's repositories, but that doesn't mean that it's difficult to install. You can download the VeraCrypt installer right from the...
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RHEL / CentOS

How to install ActiveMQ on RHEL 8

Apache ActiveMQ is a widely used messaging server written in Java. As messaging services commonly do, it creates a bridge between heterogeneous systems for reliable data exchange in the form of messages pushed into queues by producer clients, where they wait to be "read", or consumed by consumer clients. Naturally a system that is client to ActiveMQ can be both producer and consumer, and more than one systems can...
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Fedora

How to configure static IP address...

There ar multiple ways on how to set your Fedora 31 system with a static IP address. Using the nmcli is perhaps the simplest regardless of GUI is currently your system configured with. In this tutorial you will learn: How to set static IP address How to set DNS server IP address How to Gateway IP address How to apply / restart network Configure static IP address on Fedora 31 Software Requirements and Conventions...
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