Backup IMac Using Time Machine Over The Internet?

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You may be able to back up to your time machine over the internet. But then you either need to have your computer connected to a VPN all the time or every time you want to have a backup done. You would need two NASes to do it automatically. One for local backups and seconds NAS which automatically will synchronize remotely over the internet. So you will have two time machine backups. One at your home and other to entirely different locations.I hope this helps.