In this tutorial, we will show you how to install and set up Apache CouchDB on a VPS running Ubuntu 18.04.
Apache CouchDB is a free and open-source NoSQL database solution. Apache CouchDB has a document-oriented NoSQL database architecture and is implemented in the concurrency-oriented language Erlang; Apache CouchDB uses JSON to store data with documents, it uses JavaScript as its query language using MapReduce, and it uses RESTful HTTP for its API. CouchDB works smoothly with all latest modern web and mobile applications. All of this makes for a pretty seamless database experience. Let’s get started with installing CouchDB.
Mastodon is a free and open-source network platform that is very similar to the famous social media platform known as Twitter. However, unlike Twitter, there is no single central authority and there is no advertising. Mastodon is written in Ruby and JavaScript and its open-source nature makes sure that it remains open for anyone to use privately and securely. Anyone can create a Mastodon server and build their own communities with friends. Additionally, Mastodon is supported by and available through multiple apps for iOS, Android, and other platforms, which will allow you to keep in touch with your friends anywhere you go. Let’s start with installing Mastodon.
Zabbix is a highly integrated open-source system monitoring solution. It is a software that provides monitoring of numerous parameters and metrics such as CPU, network, disk, and many others. All of the reports and statistics are accessible using a web-based front-end interface which ensures that the status of your network and the health of your servers can be easily viewed, from any location, at any time. Let’s begin with installing Zabbix.
Icinga 2 is a modern open-source network monitoring application which can be used to monitor the network infrastructure and check the health of servers and their services. Icinga 2 is a branch of Nagios rewritten from scratch in C++. It is backwards-compatible with all existing Nagios plugins, add-ons, and the Nagios user interface. Icinga 2 has a user-friendly web interface, but it also comes with a command line interface that can be used to monitor networks, servers and services with specific commands.
Gogs is a free and open-source self-hosted Git service written in the Go programming language. It’s easy-to-install, cross-platform, and lightweight, all of which allows Gogs to run on all sorts of hardware easily. This guide should work on other 
MongoDB is an open-source database management system that belongs to a family of NoSQL. NoSQL is different from traditional table-based SQL databases (
Go is an open-source, compiled programming language created by Google. Go is popular for many applications, including Docker and Kubernetes, which are written in Go. The language is designed for writing servers and provides a big set of libraries, making it very versatile and applicable for many use cases.