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My Tomcat 7 process, which I run on a server on Amazon EC2, has settings such as these in CATALINA_OPTS which should allow me to connect for JMX monitoring remotely:

However, connecting remotely does not work with either jconsole or jvisualvm. It just times out.

I've triple-checked that the EC2 security group allows access to the JMX remote port from my IP (and only from my IP).

Are there any settings missing?

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3 Answers 3

up vote 2 down vote accepted

Specify the java.rmi.server.hostname option too, so that it points to the public DNS name of your EC2 server:


That was sufficient to get it working for me, but for more tips, try this blog post:
JMX Monitoring on Amazon EC2

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Here is more complete explanation of how to do it without messing with the group security (aka firewall):

Server side:

  1. download and put it in tomcat/lib
  2. add following listener to server.xml:

    <listener classname="org.apache.catalina.mbeans.JmxRemoteLifecycleListener"
        uselocalports="true" />
  3. add following settings in tomcat/bin/


Restart tomcat

Client side:

  1. download same catalina-jmx-remote.jar and put it in JDK/JRE/lib/ext (same file as downloaded at Server step 1)
  2. start ssh tunnel with:

    ssh user@aws-host -L10001: -L10002:

  3. Start JConsole and enter the following remote service URL:


You have JConsole connected over SSH to your tomcat running on AWS.

As posted on:

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If you're having trouble setting the correct hostname for java.rmi.server.hostname try the following:

-Djava.rmi.server.hostname=$(/usr/bin/curl -s --connect-timeout 2 instance-data.ec2.internal/latest/meta-data/public-hostname)

This is convenient to use in an Elastic Beanstalk environment where instances will come and go.

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