Jeff Wilson 
Elgg is a free and open-source social networking engine that is easy to install and set up, and then used to power your social network. Elgg is built using PHP and is based on the MVC (Model-View-Controller) design pattern. It uses a MySQL/MariaDB database to store data.
Vtiger is an open source Customer Relationship Management (CRM) solution with project management, sales and marketing automation and other capabilities. It was created in 2004 from a fork of SugarCRM.
RPM or Red Hat Package Manager is a free, open-source package management system.
The RPM package management system is written in C and Perl programming languages for Linux operating systems.
In this tutorial, we are going to explain in step-by-step detail how to install Collabora Online on Ubuntu 22.04 OS.
Collabora Online is an open-source office built on LibreOffice Technology. It provides many features and one of the most useful is that Collabora provides real-time editing of Word documents, spreadsheets, presentations and etc.
Let’s Encrypt is a free and open Certificate Authority (CA) that provides free digital certificates for enabling HTTPS (HTTP Secure) on websites. HTTPS uses the SSL/TLS protocol to encrypt communications so that attackers can’t steal data.
pgAdmin is a powerful and feature-rich administration tool with a user-friendly web-based interface. It’s a database management tool for one of the most popular open-source RDMB systems, PostgreSQL.
Suite CRM is an open-source Customer Relationship Management system written in PHP. Suite CRM is an extended version of SugarCRM and was developed when SugarCRM stopped its open-sourced version.
Now, Suite CRM as a system offers a variety of new modules such as Products, Quotes, Teams Security, Responsive Theme, and many more.
JasperReports is an open-source reporting platform for creating, distributing, and managing reports. It is a Java class library; web developers who build Java-based websites and need to add reporting capabilities to their applications would use this tool.