How to access an EJB in another J2ee server?

Dear experts:
I have a jsp file that is a client of a J2ee server A, and I am going to access an EJB that is situated in J2ee server B from this jsp file.
It will be very appreciate if you can tell me how to do that. My current program is:
try
Properties props = new Properties();
props.setProperty(Context.PROVIDER_URL, "rmi://ip:port");
Context initial = new InitialContext(props);
Object objref = initial.lookup("MyUserEJB");
UserHome home = (UserHome) PortableRemoteObject.narrow(objref, UserHome.class);
Collection users = home.findByName("alin");
for(Iterator i=users.iterator(); i.hasNext();)
User user = (User)i.next();
System.out.println("User " + user.getFirstName() + " details:\n");
System.out.println(" email : " + user.getEmail() + "\n");
catch (Exception e)
System.err.println("Caught an exception.");
e.printStackTrace();
In which, the MyUserEJB is an EJB in ip:port J2ee server (server B). The server A is localhost:1050. This program does not work.
Best regards,
Alan

Hi,
Have a look at
http://forum.java.sun.com/thread.jsp?thread=365927&forum=136&message=1543094

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<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Wael Abbas ([email protected]):
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