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Multiple listeners allow to connect with different protocols and bind listeners to the specific network interface. You can find more details about how multiple listeners configured in HiveMq
HiveMQ provides flexible configurations to use multiple listeners for different protocols based on your need. For example, Clients with standard TCP connections can connect HIVEMQ on one port and secure TCP connections on another port. You can check here for more detailed configurations.
Similarly, it is also possible to use multiple listeners in the Kubernetes operator.
Here we are taking the example of configuring TLS and Non-TLS clients clients with standard TCP and Secured TCP to connect broker brokers via Kubernetes.
Instructions
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Add two ports (TLS and non-TLS) via the values.yamlYAML file
Typically 1883 for plain TCP and 8883 for 8883 TLS secured TCP
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