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mosquitto:tldr:ca624

mosquitto: Listen on a specific port.

mosquitto

$ mosquitto --port ${8883}

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The command mosquitto --port ${8883} is used to start the Mosquitto MQTT broker with a specific port number.

Here is a breakdown of the command:

mosquitto: This is the command to start the Mosquitto MQTT broker. Mosquitto is an open-source message broker that implements the MQTT protocol. It allows devices to communicate with each other using the publish-subscribe pattern.
--port: This is an option flag used to specify the port number on which the MQTT broker should listen. In this case, the port number is specified by the variable ${8883}.
${8883}: This is a variable that represents the port number. Typically, port number 8883 is used for MQTT communication over a secure SSL/TLS connection. The variable ${8883} is used here to indicate that the actual port number can be customized to any specific value.

Overall, the command starts the Mosquitto MQTT broker to listen on a specific port number (in this case, port 8883), allowing MQTT clients to connect and communicate with each other.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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