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Message Queuing Telemetry Transport (MQTT) is among the top 10 most used protocols in the Internet of Things (IoT) industry. It originally started in 1999 for oil and gas pipelines to communicate over remote satellites. MQTT is a network protocol that functions on a publisher-subscriber communication model. It’s lightweight enough to be used for a wide variety of IoT devices yet powerful enough to work through unstable network conditions. We will use Python-based Python to implement and configure an MqTT 5-compatible broker installation for an IoT system on LAN.