Internet TCP port 1883 is commonly used by the MQTT (Message Queuing Telemetry Transport) protocol, a messaging protocol designed for lightweight machine-to-machine communication. It is widely used in Internet of Things (IoT) applications due to its efficiency and low power usage. Examples of software that use this port include the Mosquitto MQTT broker and the Paho MQTT client libraries. Other IoT platforms like AWS IoT Core and Microsoft Azure IoT Hub also utilize this port for MQTT communication.
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