I maintain three sets of backups - two personally, and one with a third party service. For the personal backups, I keep one at home (second location) and anoth

I maintain three sets of backups - two personally, and one with a third party service. For the personal backups, I keep one at home (second location) and another in the office. In both cases, I rely on rsnapshot (http://rsnapshot.org/ http://rsnapshot.org/). It's an oldie but a goodie - I've been using it for over 15 years. It solves the rotating backup problem - and thanks to the glory of symlinks reduces my disk usage. I also use duplicity to gpg-encrypt files that I save into SpiderOak - but feel free to use s3 buckets. I very much like having encrypted backups just work. In both cases I have my scripts notify my via a webhook when things fail - and every 7 days regardless, just so that I don't have a heart-attack wondering if anything happened. SpiderOak is new - about 8 years. The webhook is newer, about 4. The rest is ancient and continues to work across everything, always.