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This situation arises due to the hostname configuration on Linux and is generally encountered when the remote machine does not have a DNS hostname entry on the local network, causing the hostname command to return a loopback IP instead of a fully qualified domain name or IP address accessible by remote client machines. It is described in further detail at: http://java.sun.com/javase/6/docs/technotes/guides/management/faq.html#linux1
To remedy this issue you can set the java.rmi.server.hostname system property to control the hostname/ip reported to the RMI runtime when advertising the JMX ConnectorServer. This can also be used to dictate the address returned on a computer with multiple network interfaces to control reachability. To do so, add the value -Djava.rmi.server.hostname=<desired hostname/ip> to the QPID_OPTS environment variable before starting the qpid-server script.
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