In some cases, you may need to change the Infrastructure Data Collector default port assignments. Users may wish to change ports in the case of conflicts, if multiple Infrastructure Data Collectors are installed on the same machine, or to accommodate specific configuration issues. Infrastructure Data Collector uses two ports: one serves as the primary port to invoke web services, and the other is the configuration port used for deploying central configuration metadata. To change the port assignment, you must perform some changes to Infrastructure Data Collector configuration files, as described in the sections below.