The port parameter specifies the TCP/IP port number on which the protocol handler listens for incoming client requests.
On Windows, you can use the ctgservice command with the -port option to override the value of the port parameter. On UNIX and Linux, you can use the ctgstart command with the -port option to override the value of the port parameter. For more information, see the Command reference.
This parameter is in the GATEWAY section of the configuration file.