Linux as a Domain Controller

The site owner is trying to migrate to a new data center and wants to see if we can successfully implement Linux as a DC for cost reasons when we have been using AD2012 for this purpose.  I would like to do test this perhaps using Amazon Web Services AWS.  I'd like to get a feel for what the buzz is around this issue and see if we are likely to be successfull in the endeavor.

Assistance is greatly appreciated.
Who is Participating?
Samba4 can be AD controller for all windows versions. (Samba 3 has limitations mentioned above - domain member or secondary DC only)
You need to use software called Samba to do that. Note that Samba can be a DC, but not a PDC. See here and here for more information.
frugalmuleAuthor Commented:
Thanks for the info about Samba3.  What about in Samba4
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either use SAMBA or configure LDAP but still i would suggest DC configured over windows 2012 is much more powerful then the LDAP/SAMBA in linux. It is costly i understand but with time you will realize that 2012 DC was the good option instead of linux DC.

I never suggested any other product over linux but Active Directory is one of the fav one.. Don't go for linux DC..

If I were you I'd do the testing on your premises, not via amazon (maybe that could be done at a later stage).

Then get yourself a copy of the community version of Zentyal, it is an Ubuntu based OS designed for server tasks, built up in modules so you can install only those features you want. It is very easy to install, and it is managed via a web-browser, which is also very easy, and you can do that remaotely from any connected PC that has a web-browser installed.

It includes Samba4 with Ldap combined, so you can set it up as your DC very easily. It is much easier than if you were to do that manually on a normal Linux OS. The community version of Zentyal is free while the others aren't. The main difference between the 2 versions is that with the commercial product you get support, while with the free version you are left on your own using forums and docs you can find:
frugalmuleAuthor Commented:
Does Samba 4 replicate?
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