Areca Backup is a file backup tool that supports data compression & encryption, incremental backup, file history explorer and many other features. Areca Backup also includes a transaction mechanism which guarantees your backups' integrity.
Arkeia Server Backup
(commercial) A trusted industry solution for speedy, automated backup and recovery that eases the system administrator's life while improving efficiency.
Bitcoop is a peer to peer backup system that enables the storage of files on remote computers. The size of files depends on the quantity you wish to share with the other peers. It is intended for server farms that wish to backup data among themselves.
FullSync is a universal file synchronization and backup tool which is highly customizable and expandable. It is especially for developers, but the basic functionality is easy enough for everyone. It can update your Website using FTP or SFTP, backup your data on the local disk or refresh a working copy from a remote server on your local drive, and much more. It features multiple protocol support, flexible rules, a scheduler, and many other features.
JBackpack is a personal backup program. It features incremental backups, network transparency and encryption. JBackpack uses rdiff-backup for all backup and restore functions, SSHFS and SMB to access remote file systems and EncFS to encrypt backup destination directories.
JBup creates versioned backups. It combines the best features of a mirror and incremental backups. The last backup is always a mirror, previous versions are available as incremental backups. JBup uses no special file format.
Magic Mirror Backup
works by copying the files and folders on your computer to other computers within your office.
a network-based, cross-platform backup program. It is designed for easy recovery of files, no special devices or proprietary file formats. NetworkBK can interconnect variety of platforms such as Windows, Linux and others
Simple Linux Backup
The Simple Linux Backup software simplifies the task of backing up a Linux desktop system.