Huntor is a full-featured command line Bittorrent client. It currently has no GUI. This client focuses on being run in the background, such as on servers. It is highly customizable. Its disk storage layout makes it easy to incrementally rsync the data to a different machine while downloading.
Teractualizar is a daemon to synchronize files using SFTP as a secure transfer method. It also features the ability to upload and execute any application or command, which can be used to manage clusters of computers. It requires only baaic Unix commands, an SSH client, and the SFTP service. Currently, the client side of this system only runs on Windows NT (and derivative operating systems).
TigerCube is an operating system that offers an all-in-one communications platform (including an advanced phone system and email), network security (with a firewall, content filtering, and virtual private networking), file sharing, and a fully integrated backup solution under a single, unified environment. TigerCube is free to use for up to 5 users.
PowerFolder is a free tool to synchronize, backup, transfer, access, and share files over the Internet or a local network. It can be used to exchange any type of data. PowerFolder can automatically detect and synchronize the changes between local and remote files. PowerFolder uses peer-to-peer technology to exchange the files. PowerFolder also offers a secure online storage service and is easy to set up.