Error while connecting to Oracle 11gR2 database instance

Dear All,
I installed Oracle 11g R2 on my local machine (laptop) successfully. Using Sql Developer I tried to connect to the instance (ORCL) but not able to connect to the server. Please let me know hw to configure tnsnames.ora, listener.ora, and sqlnet.ora files. I tried to configure those three files using Net manager, but since I am novice, I could not do it..
Here are the details of my windows services related to oracle installation..
OracleOraDb11g_home1TNSListener (started)
OracleServiceORCL (started)
Listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(ORACLE_HOME = C:\app\Administrator\product\11.2.0\dbhome_1)
(SID_NAME = ORCL)
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(PROGRAM = extproc)
(SID_NAME = ORCL)
(ORACLE_HOME = C:\app\Administrator\product\11.2.0\dbhome_1)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = tgsdl022)(PORT = 1521))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = extproc))
ADR_BASE_LISTENER = C:\app\Administrator\product\11.2.0\dbhome_1\log
tnsnames.ora
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
LISTENER =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(CONNECT_DATA =
(SID = ORCL)
(PRESENTATION = RO)
ORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = tgsdl022)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = ORCL)
sqlnet.ora
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
ADR_BASE = C:\app\Administrator\product\11.2.0\dbhome_1\log
As per my guess, entries in tnsnames.ora, and listener.ora are not appropriate. Please help to configure the correct values in those files.
Thanks and Regards
Santosh

910192 wrote:
Dear All,
I installed Oracle 11g R2 on my local machine (laptop) successfully. Using Sql Developer I tried to connect to the instance (ORCL) but not able to connect to the server. Please let me know hw to configure tnsnames.ora, listener.ora, and sqlnet.ora files. I tried to configure those three files using Net manager, but since I am novice, I could not do it..
Here are the details of my windows services related to oracle installation..
OracleOraDb11g_home1TNSListener (started)
OracleServiceORCL (started)
Listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(ORACLE_HOME = C:\app\Administrator\product\11.2.0\dbhome_1)
(SID_NAME = ORCL)
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(PROGRAM = extproc)
(SID_NAME = ORCL)
(ORACLE_HOME = C:\app\Administrator\product\11.2.0\dbhome_1)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = tgsdl022)(PORT = 1521))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = extproc))
ADR_BASE_LISTENER = C:\app\Administrator\product\11.2.0\dbhome_1\log
tnsnames.ora
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
LISTENER =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(CONNECT_DATA =
(SID = ORCL)
(PRESENTATION = RO)
ORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = tgsdl022)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = ORCL)
sqlnet.ora
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
ADR_BASE = C:\app\Administrator\product\11.2.0\dbhome_1\log
As per my guess, entries in tnsnames.ora, and listener.ora are not appropriate. Please help to configure the correct values in those files.
Thanks and Regards
SantoshError msg?

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