AD support is a feature available to QNAP TS-209 Pro II only. However, TS-209 II and TS-209 Pro II have exactly the same hardware specifications, the difference is in software. The two differences between a 209 II and a 209 Pro II are: support for NFS and AD (Active Directory).
I don’t know why QNAP sells the same thing in two prices. However, since they are only different in softwares, why pay extra $85 for the two additional software features when you can enable them by yourself ? In my last post I have described how to enable the NFS support on 209 II. This article describes how to enable the AD support on 209 II.
Login to 209 II, go to Microsoft Networking section, notice there’s no AD related topics there. Well, the AD support does exist on 209 II, it’s just disabled, we’ll enable it now. SSH to 209 II, then:
cd /home/httpd/cgi-bin/network/html ls -l *_ms_*
you will see two items, as below:
-rw-r--r-- 1 admin administ 0 Sep 4 03:35 network_ms_main-std.html -rw-r--r-- 1 admin administ 10840 Sep 4 03:35 network_ms_main.html
notice the first file has 0 bytes which is pretty strange right? Let’s change it:
rm network_ms_main-std.html ln -s network_ms_main.html network_ms_main-std.html
Now, refresh the Microsoft Networking section in Administration page, the AD Domain Member section magically appears, you may configure and use it now, like in the following image:

If you check around, you’ll see some other 0-byte files in the folder, I believe they’re NFS related, however, I can’t make the Unix/Linux NFS feature appear in Administration panel, don’t know why.

2 Comments
Hey! Thanks for the great tip! Worked like a charm, even tough network_ms_main-std.html wasn’t 0 bytes. I have the latest firmware installed and it might have changed since you wrote the guide!
Nice to hear it works for you too, this method is sort of obsolete though. You might like to check “Turn Your TS-209 II into TS-209 Pro II” for the latest method, which will turn your 209 II into a real 209 Pro II.