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WSO2 Carbon which is the underline framework for WSO2 Governance Registry (and other products) now can be monitored using a remote JMX client (such as JConsole) which is behind a firewall.To enable this feature following two properties should be uncommented from the  This feature is enabled by the following configuration at carbon.xml:

<Ports>
  <!-- The JMX Ports -->
     <JMX>
         <!--The port RMI registry is exposed-->
         <!--<RMIRegistryPort>9999</RMIRegistryPort>-->
         <!--The port RMI server should be exposed-->
         <!--<RMIServerPort>11111</RMIServerPort>-->
     </JMX>
  </Ports>

These parameters also can be passed at server start up time using the system properties com.wso2.rmiserver.port and com.sun.management.jmxremote.port for RMIServer port and the RMIRegistry port respectively.

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The following code fragment is from CarbonServerManager.java which shows how the JMX URL is constructed according to provided port.

// Create an RMI connector and start it
if (rmiServerPortString != null) {
      int rmiServerPort = Integer.parseInt(rmiServerPortString);
      jmxURL = "service:jmx:rmi://" + NetworkUtils.getLocalHostname() + ":" +
                rmiServerPort + "/jndi/rmi://" + NetworkUtils.getLocalHostname() + ":" +
                            rmiRegistryPort + "/jmxrmi";
} else {
      jmxURL = "service:jmx:rmi:///jndi/rmi://" +
                NetworkUtils.getLocalHostname() + ":" + rmiRegistryPort + "/jmxrmi";
}
JMXServiceURL url = new JMXServiceURL(jmxURL);

With this improvment you will be able to monitor Governance Registry using a JMX client which is behind a firewall.