| 摘要 |
Users provide their standard username and password and are authenticated to the system. The system then determines from a container hierarchy whether the user is an administrator of the machine to which they are logging in. If the user is an administrator, then the system sets the UID number for that user to the UID number for administrator users (typically, zero). Otherwise, the system sets the UID number for that user to the user's standard UID number.
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