sudo apt update
sudo apt install -y mosquitto mosquitto-clients
sudo snap install mqtt-explorer
sudo cp /usr/share/doc/mosquitto/examples/mosquitto.conf /etc/mosquitto/conf.d/
If you have UFW set up make sure you add permission:
sudo ufw allow 1883
MYIP1="<put your first ip address here>"
MYIP2="<put your second ip address here>"
cat <<EOT > ~/mosquitto.conf
listener 1883 $MYIP1
listener 1883 $MYIP2
allow_anonymous true
EOT
sudo install -o root -g root -m 644 mosquitto.conf /etc/mosquitto/conf.d/mosquitto.conf
sudo systemctl restart mosquitto
rm ~/mosquitto.conf
This setup could be used for many users, to limit footprint
MYIP="<put your ip address here>"
cat <<EOT > ~/mosquitto.conf
listener 1883 $MYIP
allow_anonymous true
max_inflight_messages 1
max_inflight_bytes 500
message_size_limit 100
max_queued_bytes 500
max_queued_messages 3
#memory_limit 2000000
EOT
sudo install -o root -g root -m 644 mosquitto.conf /etc/mosquitto/conf.d/mosquitto.conf
rm ~/mosquitto.conf
sudo systemctl enable mosquitto
sudo systemctl start mosquitto
sudo systemctl status mosquitto
Other Useful commands
sudo systemctl restart mosquitto
sudo systemctl stop mosquitto
sudo systemctl disable mosquitto