нет, tnsping говорит, что failed to resolve name.
А вот tnsnames
# TNSNAMES.ORA Network Configuration File: D:\oracle\ora81\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.

INST1_HTTP =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = coi-srv03)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = SHARED)
(SERVICE_NAME = RENORA)
(PRESENTATION = http://admin)
)
)

EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)

RENORA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = coi-srv03)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = RENORA)
)
)

а вот listener
# LISTENER.ORA Network Configuration File: D:\oracle\ora81\network\admin\listener.ora
# Generated by Oracle configuration tools.

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = coi-srv03)(PORT = 1521))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
)
)

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = D:\oracle\ora81)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = RENORA)
(ORACLE_HOME = D:\oracle\ora81)
(SID_NAME = RENORA)
)
)
а вот sqlnet
NAMES.DIRECTORY_PATH= (TNSNAMES)