I am successfully sharing with Windows Server 2003 RC2 to share data to Unix (via NFS) and other Windows machines. My problem is I would like to regulate this so I will only share certain folders to both a specific subnet, and to a specific ip address. Is this possible? I'm assuming it would be under the Sharing & Security right-click option of a folder and under the security tab. When I go to add a user or group name, I can not add a specific subnet or ip, only larger scale items such as Network (All). Any help would be greatly appreciated.