centos7更改机器名后oracle无法使用

 1、更改机器名称　

~]# hostnamectl --static set-hostname oracle

２、

 ~]# su - oracle

Last login: Tue Apr 12 10:11:34 CST 2016 from 192.168.30.250 on pts/0

[oracle@oracledb ~]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 12-APR-2016 10:19:53

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

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))

TNS-12541: TNS:no listener

 TNS-12560: TNS:protocol adapter error

  TNS-00511: No listener

   Linux Error: 2: No such file or directory

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=webtest)(PORT=1521)))

TNS-12545: Connect failed because target host or object does not exist

 TNS-12560: TNS:protocol adapter error

  TNS-00515: Connect failed because target host or object does not exist

   Linux Error: 110: Connection timed out

３、

~]$ vim $ORACLE_HOME/network/admin/listener.ora

更改为相关机器名

4、启动监听

 ~]$ lsnrctl start