Joomla is a free and open-source content management system (CMS) built in PHP Joomla allows users to publish different kinds of websites, such as personal blogs, government applications, corporate intranets and extranets, small and large business websites, etc. 
In today’s article, we will guide you through the steps of installing the latest stable release of Joomla on an Ubuntu 20.04 VPS, with all necessary components, such as Apache web server, MySQL database server, and PHP.

Mahara is a free and open-source electronic portfolio management system written in PHP. It is a web-based application mainly used in academic institutions to provide a platform to share their knowledge. It helps you to create a digital classroom and organize a student’s progress. You can also create a blog, build a resume, file repository, and a competency framework using Mahara. Compared to other Learning Management Systems, Mahara is distributed and user-focused.
Elasticsearch is an open-source platform for full-text search and analytics engines. It allows you to store, search, and analyze a large amount of data in real-time. It is a popular search engine designed for applications that have complex search requirements. With Elasticsearch, you can build a complex search functionality similar to the Google search engine.
SOGo is a free and open-source collaborative software with a focus on simplicity and scalability. It provides an AJAX-based Web interface and supports multiple native clients through the use of standard protocols such as CalDAV, CardDAV, and GroupDAV, as well as Microsoft ActiveSync. It also offers address book management, calendaring, and Web-mail clients along with resource sharing and permission handling.