> > You can use snmp and cacti to monitor some of the tomcat information. > > You simply need to add a few configuration modifications. > > > > See http://java.sun.com/j2se/1.5.0/docs/guide/management/SNMP.html\ Thank you all for the replies. We already use Nagios so I'm hoping for a nagios-friendly solution. Unfortunately the check_jmx plugin listed on the Nagios exchange doesn't seem to work properly, being unable to monitor Heap Memory Usage over 2Gb. Does anyone else have a dependable nagios plugin for keeping tabs on Nagios? If not we will write our own. thanks Sean