Mosquitto

Config file /etc/mosquitto/mosquitto.conf

listener 1883 0.0.0.0
password_file /etc/mosquitto/passwd

Password protect mqtt

mosquitto_passwd -c /etc/mosquitto/passwd <user>

Test connectivity

Publish event

mosquitto_pub -h halfface.se -p 1883 -t "topic" -m "Hello" -u mqtt -P mqtt

Read events

mosquitto_sub -h halfface.se -p 1883 -t "topic" -v -u mqtt -P mqtt