Tengo dos maquinas virtuales ...

1. Un Linux 7 con una base de datos Oracle 12c con la siguiente configuracion ...

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = OracleDB)(PORT = 1521))

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521)) ) )

================================================================

SQLNET

================================================================

NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)

================================================================

TNSNAMES

================================================================

ORCL =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = OracleDB)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = orcl)))

================================================================

2. Por otro lado tengo otra VM en este caso con Windows 8.1 en el cual tengo instalado

un cliente 11gR2 con la siguiente configuración ...

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = OracleDB)(PORT = 1521)))

(DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))))

SID_LIST_LSN_LISTENER =