[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