BackupPC is an open-source, high-performance, enterprise-grade free backup software that can be used for taking up data backup for Linux, UNIX, Solaris, Windows XX and Mac OSX PCs & laptops to a server's disk. BackupPC is highly configurable and easy to install & maintain as it comes with a web-based frontend. The most stable release, BackupPC 3.2.0 beta 0 was released on April 5th, 2009 is published under the GNU General Public License..The most important thing with BackupPC is that no client is necessary to run it, as the server is itself a client for several protocols that are handled by other services native to the client OS. For instance, BackupPC incorporates a Server Message Block (SMB) client that can be used to back up network shares of computers running Windows. Paradoxically, under such a setup the BackupPC server can be located behind a NAT'd firewall while the Windows machine operates over a public IP address. While this may not be advisable for SMB traffic, it is more useful for web servers running SSH with GNU tar and rsync available, as it allows the BackupPC server to be stored in a subnet separate from the web server's DMZ.
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