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Add section for setting MQTT protocol v5 (#24975)

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Jan Bouwhuis 2022-11-17 21:12:35 +01:00 committed by GitHub
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source/_integrations/mqtt.markdown
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@ -88,6 +88,10 @@ The time in seconds between sending keep alive messages for this client. The def
To enable a secure the broker certificate should be validated. If your broker uses a trusted certificate then choose `auto`. This will allow validation against certifite CAs bundled certificates. If a self-signed certificate is used, select `Custom`. A custom PEM encoded CA-certificate can be uploaded. Click `NEXT` to show the control to upload the CA certificate.
If the server certificate does not match the hostname then validation will fail. To allow a connection without the verification of the hostname, turn the `Ignore broker certificate validation` switch on.
#### MQTT Protocol
The MQTT protocol setting defaults to version `3.1.1`. If your MQTT broker supports MQTT version 5 you can set the protocol setting to `5`.
#### Securing the the connection
With a secure broker connection it is possible to use a client certificate for authentication. To set the client certificate and private key turn on the option `Use a client certificate` and click "Next" to show the controls to upload the files. Only a PEM encoded client certificates together with a PEM encoded private key can be uploaded. Make sure the private key has no password set.