NethServer - NethServer is an operating system for Linux enthusiasts, designed for small offices and medium...
NQE - CIFS/SMB based solutions for embedded / mobile markets.
ClearOS - A very good alternative for Windows Server, for free
Samba - Samba serves as an open source alternative to the traditional domain controller offered by Microsoft.
FreeIPA - FreeIPA is an integrated security information management solution combining Linux (Fedora), 389...
NFS Manager - NFS Manager is a graphical user interface to control all built-in NFS features of Mac OS X.