Amanda is the most popular open source backup and recovery software in the world. Amanda protects more than a million servers and desktops running various versions of Linux, UNIX, BSD, Mac OS-X and Microsoft Windows operating systems worldwide. Amanda simplifies the life of a System Administrator who can easily set up a single server to back up multiple networked clients to a tape- or disk-based storage system. Amanda is well documented and can be set up very rapidly. Amanda provides the unique capability of writing backups to tape and disk simultaneously. The very same data could be available on-line for quick restores from a disk and off-site for disaster recovery and long-term retention. Since Amanda does not use proprietary device drivers, any device supported by an operating system works well with Amanda. The System Administrator does not have to worry about breaking support for a device when upgrading Amanda. Amanda is very secure. Encryption on the client ensures security of data in transit and encryption on the backup server ensures security of data at rest, e.g. on a tape or on a Cloud. Amanda supports up to 4096-bit keys with public-key cryptography as well as 256-bit AES encryption. Amanda is available in various forms: Amanda Community Edition: Freely downloadable and used by hundreds of thousands of sites around the world. Available in binary form for most common operating systems and distributions. Source code is also available. Amanda Enterprise Edition: Fully supported and enhanced edition of Amanda. Includes Zmanda Management Console - a full featured GUI for Amanda. Provides support for backing up live applications and databases. Zmanda Backup Appliance: A pre-configured virtual machine to backup an entire network of systems and applications, based on Amanda Enterprise.