Client configuration for Oracle Names involves discovery of the Oracle Names servers and naming method configuration.
To configure clients to use Oracle Names servers:
Choose Command > Discover Oracle Names Servers. The following message appears:
Discovered Oracle Names Server in the region. Please exit the tool and start again.
If an Oracle Names server does not respond, a dialog will prompt you for another Oracle Names server address. If you know the network address of a particular Oracle Names server, enter it.
In the navigator pane, expand Oracle Net Configuration > Local > Profile.
From the list in the right pane, select Naming.
Select the Methods tab.
From the Available Methods list, select ONAMES and choose the right-arrow button. ONAMES moves to the Selected Methods list.
Order the naming methods according to which method you want Oracle Net to try first when resolving net service names or database service names. Select the naming method in the Selected Methods list, and choose Promote or Demote to move the selection up or down in the list.
Choose File > Save Network Configuration.