Mosquitto is an open-source message broker that uses the **M**essage **Q**ueuing **T**elemetry **T**ransport (MQTT) Protocol. To install MQTT Broker on Ubuntu 20.04, Mosquitto offers compatibility with the TCP/IP model and serves as the standard messaging platform for the Internet of Things (IoT). Since the MQTT protocol is extremely lightweight, its small code footprint allows you to create applications for devices with minimal resources such as short battery life, limited network bandwidth, an......