In this tutorial, we will show you how to set up and install ISPConfig 3 on a VPS running Ubuntu 18.04.
ISPConfig is a well-known open-source web hosting control panel that allow us to manage services through a web browser. We can easily add Apache virtual host or Nginx server blocks, create/edit/delete databases, configure cron jobs, create email accounts, and much more. It is a free 


database backend.


In this tutorial, we will show you how to install Mezzanine on 
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. 
The 
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.