linux下安装了oracle emctl start dbconsole时

发现DBSNMP 密码不是默认的DBSNMP而且我也没修改过

Alter the user profiles for SYSMAN ( DEFAULT profile) and DBSNMP(MONITORING_PROFILE) as below and tru again
DBSNMP's MONITORING_PROFILE
ALTER PROFILE MONITORING_PROFILE
LIMIT FAILED_LOGIN_ATTEMPTS UNLIMITED
PASSWORD_GRACE_TIME UNLIMITED
PASSWORD_LIFE_TIME UNLIMITED
PASSWORD_LOCK_TIME UNLIMITED
PASSWORD_REUSE_MAX UNLIMITED;
PASSWORD_REUSE_TIME UNLIMITED
PASSWORD_VERIFY_FUNCTION NULL;
这个也没办修改我的密码！！！！为什么？
SYSMAN's DEFAULT
ALTER PROFILE DEFAULT
LIMIT FAILED_LOGIN_ATTEMPTS 10
PASSWORD_GRACE_TIME UNLIMITED
PASSWORD_LIFE_TIME UNLIMITED
PASSWORD_LOCK_TIME UNLIMITED
PASSWORD_REUSE_MAX UNLIMITED;
PASSWORD_REUSE_TIME UNLIMITED
PASSWORD_VERIFY_FUNCTION NULL;