Free Backup Software

https://blog.bacula.org/
http://www.amanda.org
https://backuppc.github.io/backuppc/
https://www.duplicati.com/
https://www.dirsyncpro.org/
http://www.areca-backup.org/
https://www.clonezilla.org/

https://www.udemy.com/user/gary-mcneely/