> From: Paolo Santarsiero [mailto:paolo.santarsi...@gmail.com]
> Subject: Re: remote monitoring JVM by VisualVM
> 
> I use 8080 port because it's sure open on server (I used it for tomcat
> direct access).

Unfortunately, JMX requires an additional, dynamically assigned port, making it 
difficult to use through a firewall.  There is a new listener available for 
Tomcat that you can configure for a specific secondary port; search the 
archives for "JMX firewall", or look here: 
http://marc.info/?l=tomcat-user&m=123688600013694&w=2
http://marc.info/?l=tomcat-user&m=122277270626801&w=2
http://marc.info/?l=tomcat-user&m=122216618925359&w=2

AFAIK, the JMX listener has not made it into a Tomcat release, but it should be 
available from SVN:
http://svn.apache.org/viewvc?rev=699523&view=rev

 - Chuck


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