Agr Raj

Yasin Kothia wrote:The reason your IP keeps changing is because you do not have a static IP from your ISP.

Yes, that's fine but I don't understand why the code fails when i try to access the server through the Internet.

This is the server class

import java.rmi.*; import java.rmi.registry.LocateRegistry; import java.rmi.registry.Registry; import java.rmi.server.UnicastRemoteObject; public class ServerClass extends UnicastRemoteObject implements MyRemote { public ServerClass() throws RemoteException { } @Override public String executeTask() throws RemoteException { return "Server says Hie"; } public static void main(String[] args) { // if (System.getSecurityManager() == null) { // System.setSecurityManager(new SecurityManager()); // } try { String name = "Compute"; MyRemote service = new ServerClass(); Naming.rebind(name, service); System.out.println("Server Class bound"); }catch(Exception e) { System.err.println("ComputeEngine exception:"); e.printStackTrace(); System.exit(0); } } }

The Client Class

import java.rmi.*; import java.rmi.registry.*; public class ClientClass { public static void main(String args[]) { // if (System.getSecurityManager() == null) { // System.setSecurityManager(new SecurityManager()); // } try { MyRemote remote = (MyRemote) Naming.lookup("rmi://127.0.0.1/Compute"); String reply = remote.executeTask(); System.out.println(reply); } catch (Exception e) { System.err.println("ClientClass Exception:"); e.printStackTrace(); } } }

The Remote Interface

import java.rmi.*; public interface MyRemote extends Remote { public String executeTask() throws RemoteException; }

Runs perfectly on the same machine.
Then,
I changed the IP address in the ClientClass to 111.119.254.32, turned the firewall off and tried accessing the server from a different machine over the Internet and got the following error
Connection refused to host: 111.119.254.32 and some more nested Exception

Please help me spot where I'm Going wrong.

Tim Moores wrote:Let me emphasize what I'm asking:

You want to access the machine from remote, over the internet? ... Or do you want to connect from some other machine on your local network?

over the internet

Tim Moores wrote:That's how I understood the question. What are the answers to the 2 questions I asked?

I want to connect from some other machine to my local network

Guys thank you for your Greetings.

Let me explain the problem more clearly
When i run the application on the same machine using the IP address as 127.0.0.1 it works well. But, when i run the client on a separate machine using the current IP address that is 120.138.114.167 I get some sxception saying Connection refused to host address 120.138.114.167. I tried running the same application after turning my firewall off but still got the same exception

Note: the IP address that i have is dynamic that means it keeps changing every time I restart my router. I manually update the client file whenever the IP changes.

Hi everyone. My IP address keeps changing every time I connect to the Internet. I need the ip address for RMI Connection.

Naming.lookup("rmi://127.0.0.1/Compute")

I need to put my IP address in the above but dont know how to go about it as i get a new ip address everytime i connect to the internet. Please help

Thankx.

Hi everyone. My IP address keeps changing every time I connect to the Internet. I need the ip address for RMI Connection.

Naming.lookup("rmi://127.0.0.1/Compute")

I need to put my IP address in the above but dont know how to go about it.

Thankx.

Also my ip address keeps changing everytime i restart my router

I ran the same code from hfj and it works fine on the same machine, but when i work on a different machine it blows up at runtime. i have changed the ip address from 127.0.0.1 to 120.138.114.174.
Any help