Operation Manual

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5.5.1 Joining NAS to Active Directory (Windows Server 2003/2008)
Active Directory is a Microsoft directory used in Windows environments to centrally
store, share, and manage the information and resources on the network. It is a
hierarchical data centre which centrally holds the information of the users, user groups,
and the computers for secure access management.
The NAS supports Active Directory (AD). By joining the NAS to the Active Directory, all
the user accounts of the AD server will be imported to the NAS automatically. The AD
users can use the same set of username and password to login the NAS.
If you are using Active Directory with Windows Server 2008 R2, you must update the
NAS firmware to V3.2.0 or above to join the NAS to the AD.
Follow the steps below to join the QNAP NAS to the Windows Active Directory.
1. Login the NAS as an administrator. Go to “System Settings” > “General Settings” >
“Time”. Set the date and time of the NAS, which must be consistent with the time
of the AD server. The maximum time difference allowed is 5 minutes.
2. Go to “System Settings” > “Network” > “TCP/IP”. Set the IP of the primary DNS
server as the IP of the Active Directory server that contains the DNS service. It
must be the IP of the DNS server that is used for your Active Directory. If you use
an external DNS server, you will not be able to join the domain.