ORA-12514: TNS:listener does not currently know of service

I tnsping standby database from primary,it works but when i try to connect to standby from primary as:

[oracle@rac1 bin]$ tnsping orastd

TNS Ping Utility for Linux: Version 11.2.0.1.0 - Production on 29-DEC-2010 21:50:08

Copyright (c) 1997, 2009, Oracle.  All rights reserved.d

Used parameter files:

/ora/oracle/ora11g/network/admin/sqlnet.ora

Used TNSNAMES adapter to resolve the alias

Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (HOST = 192.0.0.24)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = orastd)))

OK (0 msec)

When I connect to standby database using SQL getting the error.

SQL> connect sys/password@orastd as sysdba

ORA-12514: TNS:listener does not currently know of service requested in connect descriptor.

Solution:

Looks like your standby DB instance is not register with the listener.

You have to register db using NETMGR or edit listener.ora file.

$ cat listener.ora

 LSNRCTL>  status

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.0.0.23)(PORT=1521)))

STATUS of the LISTENER

------------------------

Alias                     LISTENER

Version                   TNSLSNR for Linux: Version 11.2.0.1.0 - Production

Start Date                30-JAN-2014 00:57:33

Uptime                    0 days 1 hr. 46 min. 36 sec

Trace Level               off

Security                  ON: Local OS Authentication

SNMP                      OFF

Listener Parameter File   /ora/oracle/ora11g/network/admin/listener.ora

Listener Log File         /ora/oracle/ora11g/base/diag/tnslsnr/rac2/listener/alert/log.xml

Listening Endpoints Summary...

  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.0.0.23)(PORT=1521)))

Services Summary...

Service "orastd" has 1 instance(s).

  Instance "orastd", status UNKNOWN, has 1 handler(s) for this service...

Service "orarpri" has 1 instance(s).

  Instance "orapri", status UNKNOWN, has 1 handler(s) for this service...

The command completed successfully

LSNRCTL>