I am exercising a simple RMI application and I am having problem connecting to my RMI server from a client that is on a different machine. It works fine if the client is on the same machine as the server. I am using Sun's ComputeEngine example which computes Pi to a desired precision. I also used their ClassFileServer which is a simple http file server(this allows you to specify your codebase in a http url).

So here is the picture:

Server side:

• javac server classes
  
• rmic remote class
  
• start class file server
  
• start rmiregistry
  
• start rmi server class
  

If I compile and run the client on the server, it works fine. Yes I made sure the client is not in the same package as the server to make sure the stubs are downloaded.

Now if I compile and run the client on my windows 2000 box, this is the exception that I am getting:

			

			//CYPHER/.../classes $ java -Djava.rmi.server.codebase=http://10.1.1.1:2001/ -Djava.security.policy=poli
			

			cy client.ComputePi 10.1.1.1 10
			

			ComputePi exception: Connection refused to host: 127.0.0.1; nested exception is:
			

			java.net.ConnectException: Connection refused: connect
			

			java.rmi.ConnectException: Connection refused to host: 127.0.0.1; nested exception is:
			

			java.net.ConnectException: Connection refused: connect
			

			at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:570)
			

			at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:188)
			

			at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
			

			at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:104)
			

			at engine.ComputeEngine_Stub.executeTask(Unknown Source)
			

			at client.ComputePi.main(ComputePi.java:22)
			

			Caused by: java.net.ConnectException: Connection refused: connect
			

			at java.net.PlainSocketImpl.socketConnect(Native Method)
			

			at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:296)
			

			at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:162)
			

			at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:149)
			

			at java.net.Socket.connect(Socket.java:430)
			

			at java.net.Socket.connect(Socket.java:379)
			

			at java.net.Socket.
			(Socket.java:293)
			

			at java.net.Socket.
			(Socket.java:121)
			

			at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:25)
			

			at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:125)
			

			at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:565)
			

		

I am puzzeled. Any hint you can give me is appreciated.

Thanks!