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Asked: 2026-05-25T01:34:13+00:00

JMX enabled Java application appears to open a random high order port when JMX

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JMX enabled Java application appears to open a random high order port when JMX client connects

I have successfully configured a helloworld JMX enabled program, and I can connect to it using jconsole JMX client from a remote location.

When I attempt to turn on iptables I noticed that a random high order port is established when a client logs in. Eventually I would like to monitor Java applications in firewall segregated network segments. Can we control the range the random port opens in?

I’ll move this question to serverfault.com if suggested.

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1 Answer

  1. Editorial Team

    It’s possible to control the port used by RMI. See: http://olegz.wordpress.com/2009/03/23/jmx-connectivity-through-the-firewall/

    This requires code and a command-line parameter. There’s no way that I know of to do this without code (though the code can obviously be packaged in a different jar).

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