Using Multiple Certificate Authority For MTLS

[John Fortunate]

Hello,

I have a configuration in which I can establish a secure connection to MQTT using TLS, and I've also enabled TLS authentication on my RabbitMQ server. I've successfully set up the connection using a Certificate Authority (CA), a client certificate, and a client key.

Now, my goal is to utilize a different client certificate and client key generated by another Certificate Authority to establish the client connection. I'd like to achieve this without relying on the CA that I initially configured in the RabbitMQ server.

Even after adding the additional CA to the CA bundle, I'm still encountering an "Unknown CA" error. Could you please assist me with resolving this issue?

Also how many users we can create in Rabbitmq? Is there any limit to it?