Installing Oracle Database on Computers with Multiple IP Addresses
Use this procedure to set the ORACLE_HOSTNAME
environment variable.
Clients must be able to access the computer using its host name, or using aliases for its host name. To check access, ping the host name from the client computers using the short name (host name only) and the fully qualified domain name (FQDN, host name and domain name). Both must work.
Parent topic: Configuring Networks for Oracle Database