[oracle@oracle-pd ~]$ sqlplus "/ as sysdba"

SQL*Plus: Release 12.2.0.1.0 Production on Tue Aug 10 17:15:59 2021

Copyright (c) 1982, 2016, Oracle. All rights reserved.

ERROR:
ORA-01017: invalid username/password; logon denied

 

经过排查

发现sqlnet.ora中有下列参数

SQLNET.AUTHENTICATION_SERVICES=(NTS)

注释掉后即可正常登陆