Changing Ignite Default Ports

This article describes how to change the ports that Ignite uses.  There are 2 ports used by each install of Ignite PI:

1. Server port: Used by Tomcat to listen for shutdown messages.  Default is 8127.
2. Connector port: Ignite listens for all other http requests.  Default is 8123.  This is the port number used in the Ignite URL in your browser (http://<host name>:<connector port>).

Each port must be:

• Unique (i.e. the same port cannot be used as both Server and Connector)
• Available (i.e. not used by any other process, including other Ignite installs)
• Not blocked by a firewall

Once you have identified available ports, you can configure Ignite to use them by doing the following:

1. Edit the <Ignite Home>/iwc/tomcat/conf/server.xml file. 
2. Change the ports listed on the first and third lines of the files:

<Server port="8127" shutdown="SHUTDOWN">
  <Service name="Catalina">
    <Connector port="8123" />