How do I change the port numbers ArcIMS uses on UNIX?
ArcIMS uses predefined ports to communicate between the ArcIMS Application Server and the ArcIMS Servlet Connector, and the ArcIMS Application Server and the ArcIMS Spatial Server. The default ports are: 5300 for communication between the Application Server and the Servlet Connector. 5353 for communication between the Application Server and the Spatial Server. If there is a conflict with existing ports, it’s necessary to change the ArcIMS ports. Follow the steps below.