In this tutorial we will look at how you install and run the mosquitto MQTT broker on a Linux server running for example Raspberry Pi or Ubuntu. Here are the steps I used on Ubuntu. sudo apt-add-repository ppa:mosquitto-dev/mosquitto-ppa sudo apt-get update sudo apt-get install mosquitto sudo apt-get install mosquitto-clients sudo apt clean For Raspberry Pi the instructions are taken from here: wget http://repo.mosquitto.org/debian/mosquitto-repo.gpg.key sudo apt-key add mosquitto-repo.gpg.key Then make the repository available : cd /etc/apt/sources.list.d/ Then , depending on which version of debian you are using: sudo wget http://repo.mosquitto.org/debian/mosquitto-jessie.list sudo wget http://repo.mosquitto.org/debian/mosquitto-stretch.list sudo wget http://repo.mosquitto.org/debian/mosquitto-buster.list Then update apt information: sudo
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