{NONE | SHARED}
Default value SHARED Modifiable No Basic Yes Real Application Clusters Multiple instances must have the same value.REMOTE_LOGIN_PASSWORDFILE specifies whether Oracle checks for a password file.
Values:
NONE
Oracle ignores any password file. Therefore, privileged users must be authenticated by the operating system. ---就是說,sys之類的用戶,必須通過操作系統認證登錄
SHARED
One or more databases can use the password file. The password file can contain SYS as well as non-SYS users.
Note:
The value EXCLUSIVE is supported for backward compatibility. It now has the same behavior as the value SHARED.