DumbMonit
IntegrationsDatabases and messaging
MQTT broker
Connects, subscribes to a topic, and can wait for a retained message.
Product descriptions are in English, as in the product. The page labels follow your language.
What DumbMonit watches
Typical use. Broker: connection, subscription, retained message
Examples
- Mosquitto
- The broker behind Home Assistant
- Zigbee2MQTT
- ESPHome sensors
How it connects
What you need
- Username / passwordSent once the connection is encrypted, never before.
No account needed.
Default port: 1883
Setup steps: Monitor an MQTT broker
In DumbMonit, enter the broker, for example broker.home.lan:1884 (port 1883 by default).
Tick Encrypted connection for a broker listening on 8883.
If the broker requires an account, fill in its user and password.
Optional: name a topic, to check that the account may still subscribe to it.
Optional: tick Expect a retained message only for a topic that carries one, typically an availability topic.
Heads-up. The check never publishes, and it cannot tell how old a retained message is: MQTT does not date them.