Add the required JMX security settings in the prconfig.xml file by enabling authentication for the Stream JVM. Update the JAVA JRE on the server to the latest supported version. After making these changes, restart all JVM instances so the configuration is applied properly. Once the system is up, log in to the server and run the command ps -ef | grep kafka to check the running processes. Verify that the JMX setting Dcom.sun.management.jmxremote.authenticate is now set to true instead of false. This confirms that JMX authentication is enabled correctly on localhost interfaces.