連接Oracle報錯——oracle監聽程序配置/“ORA-12541: TNS: 無監聽程序”

一、問題描述

使用 Oracle Net Configuration Assistant設置服務監聽時出現如下現象

一、問題解決

1、首先！確定Oracle監聽器已經打開

• lsnrctl status ：檢查Oracle監聽器是否有啓動

[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）通過上面的日誌已經看到，監聽並未啓動

• lsnrctl start ：打開監聽

[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...

• 核心報錯：(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.163.128)(PORT=1521)))
• 需要修改我的兩個配置文件listener.ora和tnsnames.ora

（2）再次打開監聽：lsnrctl start

2、輸入正確的用戶名、密碼

（1）點擊“更改登錄”

• 修改用戶名以及密碼