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I'm trying to open a JMX connection to java application running on a remote machine.
The application JVM is configured with the following options:
I'm able to connect using localhost:1088 using jconsole or jvisualvm. But I'm not able to connect using xxx.xxx.xxx.xxx:1088 from a remote machine.
There is no firewall between the servers, or on the OS. But to eliminate this possibility I telnet xxx.xxx.xxx.xxx 1088 and I think it connects, as the console screen turns blank.
Both servers are Windows Server 2008 x64. Tried with 64-bit JVM and 32-bit, neither work.
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Remote JMX ConnectionsRight click anywhere in the blank area under the application tree and select Add JMX Connection. Provide the machine name and port number for a running JMX agent, that has been started with the appropriate system properties to allow remote management.
Enables the JMX remote agent and creates a remote JMX connector to listen through the specified port. By default, the SSL, password, and access file properties are used for this connector. It also enables local monitoring as described for the com.
The most common way to enable remote JMX access to your JVM is to specify a TCP/IP port number and some basic security settings when you start the JVM. The security settings commonly include authentication and SSL (Secure Socket Layer). Derby attempts to use the JVM's built-in platform MBean server.
Starting JConsole.Open JConsole on the remote machine. Select the remote Process radio button. Enter the IP Adress of the host and the JMX port in the following format. <IP-Add>:<Port Number>.
Had it been on Linux the problem would be that localhost is the loopback interface, you need to application to bind to your network interface.
You can use the netstat to confirm that it is not bound to the expected network interface.
You can make this work by invoking the program with the system parameter java.rmi.server.hostname="YOUR_IP", either as an environment variable or using
java -Djava.rmi.server.hostname=YOUR_IP YOUR_APP I've spend more than a day trying to make JMX to work from outside localhost. It seems that SUN/Oracle failed to provide a good documentation on this.
Be sure that the following command returns you a real IP or HOSTNAME. If it does return something like 127.0.0.1, 127.0.1.1 or localhost it will not work and you will have to update /etc/hosts file.
hostname -i Here is the command needed to enable JMX even from outside
-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.port=1100 -Djava.rmi.server.hostname=myserver.example.com Where as you assumed, myserver.example.com must match what hostname -i returns.
Obviously, you need to be sure that the firewall does not block you, but I'm almost sure that this is not your problem, the problem being the last parameter that is not documented.
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