The ultimate snapshot tool for Linux
Greg Kroah-Hartman and Matthias Eckermann play sysadmins and screw a web server configuration.
Arvin Schnell (lead developer) at FOSDEM 2012
Demo at SUSECon 2012 in Orlando
Snapper is opensource. Port it to your distribution or integrate it with an application.
Thanks to Snapper, you can mess up system configuration changes or package installations or updates without having to restore from an old backup and risking to lose some files. Just revert to the snapshot before your problematic change and you’re fine. Linux User & Developer Magazine