SysAdmin

This tutorial provides instructions on installing Python 3 and Python 2 on CentOS 8 with guidance on how to set the default version of Python.

For running and developing applications with Java on CentOS 8, you need to set up the Java Development Kit (JDK). There are two different implementations of JDK – OpenJDK and Oracle JDK. Learn how to install Java on CentOS 8, set up the default Java version, and the JAVA_HOME environment variable.

CentOS 8 does not provide official support for Docker. This article clearly shows you how to install a fully functional version of Docker regardless.

If you need a management system that will store and protect your authentication and authorization data, you may want to install Vault. Apart from managing access to passwords, certificates, and APIs, Vault also provides on-demand secrets, encryption, and revocation. Follow this simple guide to install Vault on a CentOS 7 system.

Since there is no way to upgrade from CentOS 7 to CentOS 8, users need to go through the entire installation process to try out the latest version of the popular Linux distribution. This guide shows you all the required steps to install CentOS 8 on your system.

If you want to install Docker on Raspberry Pi, that is on its Raspian system, you need to use the automated convenience scripts to do so. Docker is a tool for creating, deploying, and running applications in containers. The software speeds up the development while not using a lot of resources. Containers are lightweight, a feature especially valuable if you are a Raspberry Pi user.

The ability to use comments while writing code is an important skill valued among developers. These comments can be used to leave notes about the function of the code or to turn parts of code off.
This article teaches you the comment basics as well as some tips on using this feature wisely.

This article explains how to set up hardware RAID using MegaCLI. RAID (redundant array of independent disks) consists of multiple disks that are linked together to prevent data loss and speed up performance. Use MegaCLI to create, gather and monitor physical RAIDs.

If you are a Docker user, you are most likely running and managing multiple containers at the same time. Docker Compose is a software tool designed to simplify dealing with multi-container applications by allowing control over all Docker containers through a single coordinated command. Go through the installation process for Docker Compose by following the steps in this article.

Debian has released its newest stable version Debian 10, nicknamed Buster. The latest release includes many updates. This article will help you how to install Debian 10 Buster as your operating system with easy to follow, step-by-step instructions.