How to start service on boot on Ubuntu 20.04 - LinuxConfig.org

In this tutorial you will learn how to start service on boot on Ubuntu 20.04 Focal Fossa. Ubuntu uses systemd service manager to manage services which means to enable and disable services is an easy and straightforward task.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-start-service-on-boot-on-ubuntu-20-04