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How to enable remote JMX access using JConsole?

Mary-Kate Olsen

Nov 02, 2024 am 03:13 AM

How to enable remote JMX access using JConsole?

Activating JMX for Remote JConsole Access

Q: How can I activate JMX on a JVM to enable access through jconsole?

A: To enable JMX for remote access using jconsole, follow these steps:

Read relevant documentation: Refer to the official documentation at http://java.sun.com/javase/6/docs/technotes/guides/management/agent.html for detailed information.
Start JVM with parameters: Launch your program with the following parameters:

-Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote.port=9010
-Dcom.sun.management.jmxremote.rmi.port=9010
-Dcom.sun.management.jmxremote.local.only=false
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false

Example: For instance, you could start your program like this:

java -Dcom.sun.management.jmxremote \
  -Dcom.sun.management.jmxremote.port=9010 \
  -Dcom.sun.management.jmxremote.local.only=false \
  -Dcom.sun.management.jmxremote.authenticate=false \
  -Dcom.sun.management.jmxremote.ssl=false \
  -jar Notepad.jar

Note: -Dcom.sun.management.jmxremote.local.only=false is recommended, especially for Ubuntu systems.
Exception handling: If you encounter an issue stating that local RMIs only accept connections from local clients, ensure that -Djava.rmi.server.hostname=127.0.0.1 is also set.
Security consideration: Be aware that setting -Dcom.sun.management.jmxremote.authenticate=false allows anyone to access your JVM remotely. Consider using it only for local JVM monitoring.

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