[oracle@node1 ~]$ lsnrctl start listener
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 15-OCT-2014 22:53:27
Copyright (c) 1991, 2011, Oracle.  All rights reserved.
Starting /u01/oracle/product/11.2.0/db_1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.2.0.3.0 - Production
System parameter file is /u01/oracle/product/11.2.0/db_1/network/admin/listener.ora
Log messages written to /u01/oracle/diag/tnslsnr/node1/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=node1)(PORT=1521)))
Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
TNS-12555: TNS:permission denied
 TNS-12560: TNS:protocol adapter error
  TNS-00525: Insufficient privilege for operation
   Linux Error: 1: Operation not permitted

Listener failed to start. See the error message(s) above...

解决办法：

root@node1 ~]# chmod 777 /var/tmp/.oracle 
[root@node1 ~]# su - oracle
[oracle@node1 ~]$ lsnrctl start
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 15-OCT-2014 22:54:33
Copyright (c) 1991, 2011, Oracle.  All rights reserved.
Starting /u01/oracle/product/11.2.0/db_1/bin/tnslsnr: please wait..
TNSLSNR for Linux: Version 11.2.0.3.0 - Production
System parameter file is /u01/oracle/product/11.2.0/db_1/network/admin/listener.ora
Log messages written to /u01/oracle/diag/tnslsnr/node1/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=node1)(PORT=1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=node1)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date                15-OCT-2014 22:54:34
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/oracle/product/11.2.0/db_1/network/admin/listener.ora
Listener Log File         /u01/oracle/diag/tnslsnr/node1/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=node1)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
The listener supports no services
The command completed successfully