Page History

...

If using self-signed certificates in your environment, the steps to enable SSL/TLS are identical to the default workflow with the additional requirement that the certificate chain (aka. "chain-of-trust") be available to MQTT Engine and Transmission. When using self-signed certificates, the required CA certificates are not known to MQTT clients by default as they would be if the certificate was generated by a real CA and the CA certificate was provided by Java's default keystore. Therefore, MQTT Engine and Transmission must be configured to use the appropriate certificate chain.

...