On 09/27/2013 10:15 PM, Tennant, Jacob wrote: > Any advise or suggestions would be very helpful. Samba4 has been offered as an option. However, as far as I know, the packages in Fedora and RHEL are not capable of operating as an AD server. More specific information is here: https://fedoraproject.org/wiki/Features/Samba4 If you want to run Samba 4 as Microsoft Active Directory replacement, you'll need to build your own packages with Heimdal Kerberos support. Someday, when RHEL/Fedora offer working MIT Kerberos support, you'll want to migrate to reduce ongoing maintenance costs, and that's going to be a huge headache. If you don't need Group Policy support, you can use FreeIPA to authenticate Windows and Linux guests: http://www.freeipa.org/page/Main_Page OS X has been supported, but I'm not sure what the status of 10.7 is.