My TNS file
PROD=
(DESCRIPTION=
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=TCP)(HOST=guard.com)(PORT=1521)))
(CONNECT_DATA=(SERVICE_NAME=PROD) ))
DATAGUARD=
(DESCRIPTION=
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=TCP)(HOST=guard.com)(PORT=1521)))
(CONNECT_DATA=(SERVICE_NAME=DATAGUARD)))
My Listener is
PROD=
(DESCRIPTION=
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=TCP)(HOST=guard.com)(PORT=1521)))
(CONNECT_DATA=(SERVICE_NAME=PROD) ))
DATAGUARD=
(DESCRIPTION=
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=TCP)(HOST=guard.com)(PORT=1521)))
(CONNECT_DATA=(SERVICE_NAME=DATAGUARD)))
My SQLNET is
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
ADR_BASE=/u01/app/oracle
AUTOMATIC_IPC=OFF
SQLNET.EXPIRE_TIME=10
NAMES.INITIAL_RETRY_TIMEOUT = 1
NAMES.REQUEST_RETRIES = 2
SQLNET.INBOUND_CONNECT_TIMEOUT = 250
NAMES.NO_PERSISTENT_RESOURCES=TRUE
SQLNET.AUTHENTICATION_SERVICES=ALL
I want to restart listener but while stopping listener getting error
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 04-SEP-2016 10:46:11
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=guard.com)(PORT=1521)))
TNS-12535: TNS:operation timed out
TNS-12560: TNS:protocol adapter error
TNS-00505: Operation timed out