. At a simplistic level, the AD functionality is the most stable of these areas. Prior to the introduction of the s0fs project, it was recommended for installations to use Samba0 as the Domain Controller, and then use the older Samba0.x servers as members of the domain, functioning as the main file servers. At a simplistic level, the AD functionality is the most stable of these areas. Prior to the introduction of the s0fs project, it was recommended for installations to use Samba0 as the Domain Controller, and then use the older Samba0.x servers as members of the domain, functioning as the main file servers. 