连接Oracle报错——oracle监听程序配置/“ORA-12541: TNS: 无监听程序”

一、问题描述

使用 Oracle Net Configuration Assistant设置服务监听时出现如下现象

一、问题解决

1、首先！确定Oracle监听器已经打开

• lsnrctl status ：检查Oracle监听器是否有启动

[oracle@qiuhua root]$  lsnrctl status

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 04-APR-2020 23:45:56

Copyright (c) 1991, 2005, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.163.128)(PORT=1521)))
TNS-12543: TNS:destination host unreachable
 TNS-12560: TNS:protocol adapter error
  TNS-00513: Destination host unreachable
   Linux Error: 101: Network is unreachable

（1）通过上面的日志已经看到，监听并未启动

• lsnrctl start ：打开监听

[oracle@qiuhua root]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 04-APR-2020 23:46:34

Copyright (c) 1991, 2005, Oracle.  All rights reserved.

Starting /u01/app/oracle/product/10.2.0/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 10.2.0.1.0 - Production
System parameter file is /u01/app/oracle/product/10.2.0/network/admin/listener.ora
Log messages written to /u01/app/oracle/product/10.2.0/network/log/listener.log
Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.163.128)(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: 99: Cannot assign requested address

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

• 核心报错：(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.163.128)(PORT=1521)))
• 需要修改我的两个配置文件listener.ora和tnsnames.ora

（2）再次打开监听：lsnrctl start

2、输入正确的用户名、密码

（1）点击“更改登录”

• 修改用户名以及密码