Hi, I was hoping you could clarify the following for me. I would like to use Samba as a AD DC, but need to know in advance which features of a "classical" Windows DC it supports. (By Samba, I mean the latest version of Samba.) For example, I have been given advice how to setup Public Key Policies on Server Fault (for link, see [1]). How do I tell whether this particular functionality is supported by Samba? As I understand it, Samba is AD compatible, meaning it can take the hierarchical structure of a directory to build GPOs. When a Windows workstation requested GPOs for the user, it uses it to alter registry keys, etc. - it is a change in the workstation's configuration, "no work is being done" except for this change in configuration. (I believe it's actully a lot of work...) However, what is suggested in this case on Server Fault is a little bit more complex functionality. It does not only involve change in configuration, it involves automated transport of a file (a certificate) to a remote computer, checking current certificate's expiry date, communicates to the CA about certificate renewal etc. It's called Certificate Management, I think. Is my assumption correct that with Samba, I can perform all the configurations, but these specialized functions such as certificate deployment are features of Windows Server, not the AD DC itself? Furthermore, can this behaviour (automated distribution of certificate for RADIUS server) be scripted on a Linux DC? (This particular case is not as important as understanding which functions in general are supported. It would be nice to know how to do it, though.) Greetings from Prague, Czech republic David PS: If I sent this message more than once, please excuse me. I had some trouble setting up my mailing list account. --- [1] https://wiki.samba.org/index.php/Samba_AD_management_from_windows#Implementing_Group_Policies_.28GPO.29_in_A_Samba_Domain