Hello guys, I'm going to ask a question that has been asked before, but I'm unable to get this going... I have a client application that wants to connect to an application sever (JBOss 3.2.3)over the internet using rmi over http tunneling. The getInitialContext works, but when I try to lookup an object, I get an 'UnknownhostException' and then the windows name of my pc. I read somewhere I should add this: -Djava.rmi.server.hostname=aaa.bbb.ccc -Djava.rmi.server.useLocalHostname=false to my JAVA_OPTS line in run.bat. I did, but it still does not work. I've put my ip address in aaa.bbb.ccc since I did not know what else to put there... and why does my client still recieves the name of my windows machine while I say that useLocalHostName is false ? Can anyone help me ? thnx!