How to enable MQTT over Secure WebSocket?
What is Secure WebSocket: https://www.hivemq.com/blog/mqtt-essentials-special-mqtt-over-websockets/. Only from SCADA versions greater than 4.9 this is activated by default.
Switch to the SCADA path: cd /opt/JUMO_Scada/JUMO/
Or change to the path where the SCADA was installed.Shut down SCADA: docker-compose down
Edit file“conf/rabbitmq/enabled_plugins”, e.g. with vim or nano.In the file there is a line which is structured like this [ … ]. The following string must be inserted before the closing square bracket (without quotation marks): “,rabbitmq_web_mqtt”.The whole line should then look like this:[rabbitmq_management,rabbitmq_auth_backend_cache,rabbitmq_auth_backend_http,rabbitmq_mqtt,rabbitmq_web_mqtt].
Save file
Restart SCADA: docker-compose up -d