监听器启动时报错：TNS-12537: TNS:connection closed/ TNS-00507: Connection closed

监听器启动时报错：

版本为：LSNRCTL for Linux: Version 10.2.0.1.0

[oracle@ocm1 ~]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 24-MAR-2014 15:05:43
Copyright (c) 1991, 2005, Oracle.  All rights reserved.
Starting /u01/app/oracle/product/10.2.0.1/dbhome_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
   

   经查询是127.0.0.1                localhost.localdomain localhost   这一条没写对，127后面少了0，更改后正常。

   [oracle@ocm1 bin]$ sudo vi /etc/hosts

127.0.0.1                localhost.localdomain localhost
::1             localhost6.localdomain6 localhost6
192.168.57.217   ocm1.bys.com ocm1

修改后重新启动监听器，正常。