NAT Problem solved

Introduction

 Overview from collateral 

Collateral

I had to implement the following policies

• props.put("jacorb.ior_proxy_host", "<public IP address of the server>");
• props.put("OAPort", "<fixed port number>");

So I have set mine as follows

• props.put("jacorb.ior_proxy_host", "52.30.211.134");  // this is very important because it embeds the public IP in the IOR, without it, the private IP is put in the IOR
• props.put("OAPort", "5555");  // listening on port 5555, this is important because I have let the windows server firewall know about this port

You must enable the following inbound ports 2089 (the one I have set Jacorb NS to listen on) and 5555 (the one I have set the Jacorb app to listen on) on the EC2 security group and windows firewall