In this tutorial, we will show you how to install Mezzanine on CentOS 7 Mezzanine is a free and open-source content management system (also known as a CMS), built using the Django web application framework. It is a set of useful components that helps developers to easily and quickly create websites for a variety of purposes. It provides an intuitive interface for managing and creating webpages, blog posts, form data, store products, as well as many other types of content.
Unlike other popular CMS applications, all of these functionalities are available out-of-the-box, without the need for using any additional modules or add-ons. Installing Mezzanine CMS on CentOS 7 is an easy task if you follow the steps below carefully.
In this tutorial, we will show you how to install NodeBB on Debian 9, NodeBB is a free and open-source discussion platform that utilizes web sockets for instant interactions and real-time notifications. Powered by Node.js, NodeBB is fast, simple, and easy-to-use. It has lots of features, such as social network integration and streaming discussions. 
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RainLoop is a free and open-source webmail application written in PHP. As an alternative to other popular webmail applications like RoundCube and SquirrelMail, RainLoop is a complete webmail solution – it is a simple and modern, yet very powerful and flexible at the same time. RainLoop webmail has a built-in caching mechanism, which improves the overall performance of the application while also reducing the load on both the web server and the mail server.
Kafka or Apache Kafka is a distributed messaging system based on the principle of the pub-sub (publish-subscribe) model. It allows us to publish and subscribe to a stream of records that can be categorized. It is an incredibly fast, highly scalable, fault-tolerant system, and it’s designed to process large amounts of data in real time. Apache Kafka can be used as an alternative to a message broker as well, which allows us to process/transform a stream of records. Kafka can be used as a messaging system, but in a rather incomparably huge scale. Overall, Apache Kafka is a very powerful tool when used correctly.
Additionally, Open Web Analytics has built-in support for tracking websites that are created with popular content management systems, such as WordPress and MediaWiki.
TaskBoard is a free, open-source, PHP-based and self-hosted scheduling application which help users to keep track on their important tasks. TaskBoard has a simple and clean ‘Kanban’-inspired interface that’s intuitive and very easy-to-use.