PostgreSQL is an open-source, advanced RDBMS designed for managing a wide range of data tasks. It supports SQL to handle both small and large applications, including analytics, GIS, healthcare, and dynamic web apps. In this article, you are to install PostgreSQL on an Ubuntu 22.04 server, and finally secure it for production use on your server. Before you begin: * Have an [Ubuntu 22.04 server](https://www.vultr.com/servers/ubuntu/). * Access the server using SSH as a non-root user with sudo priv......