MQTT Installation

  • Install mosquitto broker and mosquitto-clients client packages.
      sudo apt -y update
      sudo apt -y install mosquitto
      sudo apt -y install mosquitto-clients


  • Configure the broker. The mosquitto broker’s configuration file is located at /etc/mosquitto/mosquitto.conf. Open and edit this file. To configure MQTT broker to be authenticated.
      sudo vi /etc/mosquitto/mosquitto.conf
  • Delete this line.
      include_dir /etc/mosquitto/conf.d
  • Add the following lines to the bottom of the file.
      allow_anonymous false
      password_file /etc/mosquitto/pwfile
      listener 1883
    • anyone connecting to our broker need to provide username and password
    • mosquitto to listen for messages on port number 1883
    • If you don’t want the broker to require a username and password, don’t include the first two lines that we added.
  • tell mosquitto what the username and password are. Replace <username> with the username that you would like. Then enter the password you would like when prompted. When editing the configuration file, you specified a different password_file path, replace the path below with the one you used
     sudo mosquitto_passwd -c /etc/mosquitto/pwfile <username>
  • Reboot RPi
      sudo reboot
  • Start the broker
      sudo service mosquitto start