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JBoss: Overlooked Solution for JGroups-Related Startup Errors

I came across this a little while ago and the fix for it became so obvious, I feel really bad for not noticing it in the first place.  In JBoss, if your server will not start up and you are participating in a cluster and you see the following message in your jboss server.log:

UDP.createSockets(): cannot list on any port in range 0-1

Check to see if the IP address bound to your network interface card matches the IP address recorded for your hostname in /etc/hosts.  It probably does not.  Once you fix them, JBoss should start up fine.


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