You can use Oracle Net Manager to configure the following network components:
Local Naming — Define simple names, connect identifiers, and map them to connect descriptors to identify the network location and identification of a service. Oracle Net Manager supports configuration of connect descriptors in local tnsnames.ora files or a centralized directory service.
Naming Methods — Configure the different ways in which connect identifiers are resolved into connect descriptors.
Profiles — Configure preferences for enabling and configuring Oracle Net features on the client or server.
Listeners — Create and configure listeners to receive client connections.