[root@rac02 config]# lsnrctl status
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 11-OCT-2014 15:08:29
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 25-MAR-2014 09:38:10
Uptime 200 days 5 hr. 30 min. 18 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/rac02/listener/alert/log.xml