启动监听报错：TNS-12537: TNS:connection closed TNS-12560: TNS:protocol adapter error TNS-00507: Connection closed Linux Error: 29: Illegal seek

启动监听程序报错：

说明：在rhel5.8上安装完成oracle11g数据库后，使用netca创建完监听，启动监听时报错。还未使用dbca创建实例。

[oracle@rusky-oracle11g ~]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 02-APR-2015 08:33:53

Copyright (c) 1991, 2009, Oracle. All rights reserved.

Starting /u01/app/oracle/product/11.2.0.1/db_1/bin/tnslsnr: please wait...

TNS-12537: TNS:connection closed
TNS-12560: TNS:protocol adapter error
TNS-00507: Connection closed
Linux Error: 29: Illegal seek

处理方法：修改/etc/hosts文件如下

[root@rusky-oracle11g ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
#127.0.0.1 rusky-oracle11g.com rusky-oracle11g 把此行注释，添加第二行如下，否则启动监听程序时报错。
127.0.0.1    localhost.localdomain    localhost
192.168.1.203 rusky-oracle11g.com rusky-oracle11g

/etc/resolve.con文件默认如下，未做修改：

[oracle@rusky-oracle11g ~]$ cat /etc/resolv.conf
search com

再次启动监听正常：

[oracle@rusky-oracle11g ~]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 02-APR-2015 08:37:38

Copyright (c) 1991, 2009, Oracle. All rights reserved.

Starting /u01/app/oracle/product/11.2.0.1/db_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.2.0.1.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0.1/db_1/network/admin/listener.ora
Log messages written to /u01/app/oracle/diag/tnslsnr/rusky-oracle11g/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rusky-oracle11g.com)(PORT=1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=rusky-oracle11g.com)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 02-APR-2015 08:37:38
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/11.2.0.1/db_1/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/rusky-oracle11g/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rusky-oracle11g.com)(PORT=1521)))
The listener supports no services
The command completed successfully

参考资料：

http://blog.csdn.net/zengmuansha/article/details/22686231

http://blog.chinaunix.net/uid-24612962-id-3194611.html