windows平台 sqlplus / as sysdba登录出现ora-01017错误

问题描述：
windows平台，数据库版本为Oracle 11.2.0.4，以sqlplus / as sysdba登录出现ora-01017

C:\Users\Administrator>sqlplus / as sysdbaSQL*Plus: Release 11.2.0.4.0 Production on 星期四 1月 21 11:06:43 2021Copyright (c) 1982, 2013, Oracle.  All rights reserved.ERROR:
ORA-01017: invalid username/password; logon denied请输入用户名:
ERROR:
ORA-01017: 用户名/口令无效; 登录被拒绝请输入用户名:
ERROR:
ORA-01017: 用户名/口令无效; 登录被拒绝

用另一种方式登录，也出现相同的报错

C:\Users\Administrator>sqlplus /nologSQL*Plus: Release 11.2.0.4.0 Production on 星期四 1月 21 11:06:49 2021Copyright (c) 1982, 2013, Oracle.  All rights reserved.SQL> conn / as sysdba
ERROR:
ORA-01017: invalid username/password; logon deniedSQL> exit

当前操作系统用户是administrator，已经是管理员权限了，不存在权限不够的问题，那应该就是操作系统认证的环节出现了问题，查看sqlnet.ora文件：

 E:\oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN\sqlnet.ora# sqlnet.ora Network Configuration File: E:\oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN\sqlnet.ora
# Generated by Oracle configuration tools.SQLNET.AUTHENTICATION_SERVICES = (NONE)# This file is actually generated by netca. But if customers choose to
# install "Software Only", this file wont exist and without the native
# authentication, they will not be able to connect to the database on NT.ADR_BASE = E:\oracle

果然，SQLNET.AUTHENTICATION_SERVICES = (NONE)关闭了操作系统认证。
SQLNET.AUTHENTICATION_SERVICES有3个参数：
SQLNET.AUTHENTICATION_SERVICES = (NONE) 关闭操作系统认证
SQLNET.AUTHENTICATION_SERVICES = (ALL) 开启LINUX和AIX操作系统认证
SQLNET.AUTHENTICATION_SERVICES = (NTS) 开启windows操作系统认证

修改SQLNET.AUTHENTICATION_SERVICES参数

# sqlnet.ora Network Configuration File: E:\oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN\sqlnet.ora
# Generated by Oracle configuration tools.#SQLNET.AUTHENTICATION_SERVICES = (NONE)
#SQLNET.AUTHENTICATION_SERVICES = (ALL)
SQLNET.AUTHENTICATION_SERVICES = (NTS) # This file is actually generated by netca. But if customers choose to
# install "Software Only", this file wont exist and without the native
# authentication, they will not be able to connect to the database on NT.ADR_BASE = E:\oracle

连接数据库正常：

C:\Users\Administrator>sqlplus / as sysdbaSQL*Plus: Release 11.2.0.4.0 Production on 星期四 1月 21 12:02:09 2021Copyright (c) 1982, 2013, Oracle.  All rights reserved.连接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing optionsSQL> set linesize 200
SQL> select name,open_mode,database_role from v$database;NAME               OPEN_MODE                                DATABASE_ROLE
------------------ ---------------------------------------- --------------------------------
ORCL             READ WRITE                               PRIMARYSQL>

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windows平台 sqlplus / as sysdba登录出现ora-01017错误

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