OpenMediaVault is a Network-Attached Storage (NAS) solution based on Debian GNU/Linux. It contains services like SSH, (S)FTP, SMB/CIFS, DAAP media server, rsync, BitTorrent and many more. Thanks to a modular design it can be enhanced via plugins. OpenMediaVault is primarily designed to be used in home environments or small home offices, but is not limited to those scenarios. It is a simple and easy-to-use out-of-the-box solution that will allow everyone to install and administrate a Network-Attached Storage without deeper knowledge.

http://www.openmediavault.org/