启动监听器无法打开，报错！
1 [oracle@localhost ~]$ lsnrctl start 2 3 LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 06-AUG-2014 19:40:52 4 5 Copyright (c) 1991, 2009, Oracle. All rights reserved. 6 7 Starting /opt/oracle/11g/bin/tnslsnr: please wait... 8 9 TNSLSNR for Linux: Version 11.2.0.1.0 - Production 10 System parameter file is /opt/oracle/11g/network/admin/listener.ora 11 Log messages written to /opt/oracle/diag/tnslsnr/localhost/listener/alert/log.xml 12 Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521))) 13 TNS-12555: TNS:permission denied 14 TNS-12560: TNS:protocol adapter error 15 TNS-00525: Insufficient privilege for operation 16 Linux Error: 1: Operation not permitted 17 18 Listener failed to start. See the error message(s) above...观察发现，提示没有权限：
查看.oracle文件：
[root@localhost ~]# ls -lrtd /var/tmp/.oracle drwxrwxrwt. 2 root root 4096 8\u6708 5 21:48 /var/tmp/.oracle [root@localhost ~]# ls -lrtd /tmp/.oracle drwxrwxrwt. 2 root root 4096 8\u6708 5 20:33 /tmp/.oracle发现权限虽然是777，但是用户组和所有者不对，改成oracle:dba
[root@localhost ~]# chown -R oracle:dba /var/tmp/.oracle [root@localhost ~]# chown -R oracle:dba /tmp/.oracle [root@localhost ~]# ls -lrtd /tmp/.oracle drwxrwxrwt. 2 oracle dba 4096 8\u6708 5 20:33 /tmp/.oracle [root@localhost ~]# ls -lrtd /var/tmp/.oracle drwxrwxrwt. 2 oracle dba 4096 8\u6708 5 21:48 /var/tmp/.oracle再次启动，成功！