Review default port numbers.

If needed, use these steps to change assigned ports after installation.

• About Managing Ports
  During installation, Oracle Universal Installer assigns port numbers to the components from a set of default port numbers.
• About Viewing Port Numbers and Access URLs
  In most cases, the port number of an Oracle Database component is displayed in the tool used to configure the port. In addition, ports for some Oracle Database applications are listed in the portlist.ini file.
• Oracle Database Component Port Numbers and Protocols
  This table lists the port numbers and protocols configured for Oracle Database components during a single-instance installation.
• Changing the Oracle Services for Microsoft Transaction Server Port
  In most cases, you need not reconfigure the port number.