Virtualization and emulation software is big these days. With cheaper RAM memory comes the possibility to ditch dual-booting and install several operating systems in QEMU or VMWare and use them alternatively whenever you feel like it. Since Red Hat Enterprise Linux 8.0 is fresh you might want to test it in VMWare before installing it on its own partition. So here is a guide to do just that.

In this tutorial you will learn:
  • How to configure a virtual machine in VMWare Workstation 15
  • How to prepare the partition for Red Hat Linux 8.0
  • How to install Red Hat Enterprise Linux 8.0 in VMWare Workstation 15

Node.js is a Javascript runtime environment based on the V8 open source engine made by Google and originally used in Chrome. Thanks to Node.js we can run Javascript outside of the browser context, and use it also like a server-side scripting language, thus creating an entire web application around it. In this tutorial we will see how to install Node.js in the RHEL 8 / CentOS 8 distribution.

In this tutorial you will learn:
  • How to list the available Node.js versions on RHEL 8 / CentOS 8
  • How to install a specific version of Node.js
  • How to switch between Node.js versions on RHEL 8 / CentOS 8
The Node.js - RHEL 8

Xdebug is great for debugging your PHP code in real time. There are a few ways to install it on RHEL 8 / CentOS 8, but the simplest and most straightforward one utilizes packages found right in RHEL's repos.

In this tutorial you will learn:
  • How to Install the Dependencies
  • How to Install Xdebug with PECL
  • How to Configure PHP to Use Xdebug
  • How to Make Sure Xdebug is Loaded

Redmine is a popular open source project management web application. It supports mayor databases like MySQL and PostgreSQL as backend, and you can also change the frontend to Apache from the WEBrick (recommended for production use) webserver shipped with the installation. In this article we will install the latest Redmine on RHEL 8 / CentOS 8, using PostgreSQL as backend, but we will leave the default WEBrick as frontend, which will serve our tests perfectly.

Do not expect this process to be an easy one, nor error-free. Even following these steps to the letter, some errors will surely happen, the setup seem to handle sudo steps somewhat inconsistently - but the solutions are also included which will guide trough these errors.

In this tutorial you will learn:
  • How to install required operating system packages
  • How to setup the database
  • How to install the Redmine application
  • How to start and login to the application

Apache Hadoop is an open source framework used for distributed storage as well as distributed processing of big data on clusters of computers which runs on commodity hardwares. Hadoop stores data in Hadoop Distributed File System (HDFS) and the processing of these data is done using MapReduce. YARN provides API for requesting and allocating resource in the Hadoop cluster.

The Apache Hadoop framework is composed of the following modules:
  • Hadoop Common
  • Hadoop Distributed File System (HDFS)
  • YARN
  • MapReduce

This article explains how to install Hadoop Version 2 on

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