PrimeArray 4xxx, User Manual

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Configuring File and Folder Security and ACL
6.6 Configuring File and Folder Security and
ACL
Access Control Lists (
ACL ) are associated with each file and
folder, as well as the list of users and groups permitted to use
that file or folder. When a user is granted access to the file or
folder, an ACL node is created and added to the ACL for the
file or folder.
If you assign permissions to a local user, a Security ID (SID)
created by NAS system will be referred by the ACL for the file
and folder security. If the local user is then deleted, and the
same name is created as the previous one, the new user does
not have permissions to the file or folder, because the SID will
not be the same. The administrator will have to re-configure all
the group memberships and access rights to the files and
folders.
Since the Security ID (SID) for domain user is issued and
maintain by the domain controller on the network.
Administrator do not need to re-configure all the group
memberships and access rights to the files and folders if the
domain user is deleted from the local user database and the
same name is created as the previous one.
Note:
If the administrator changes the permission on
a file or folder that a user is currently
accessing, the permission setting do not take
immediate effect because of the local handle
being used by the user. The new rights will only
take effect when the user reconnects to the
file or folder.
There are two built-in user accounts:
Admin and Guest . And
two built-in group accounts: Admins and Everyone .
Every user of NAS system including local and Domain user is the
member of the
Everyone group. By default, when a volume is
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