I am looking for an inexpensive way to backup my droplet on an hourly rate and only retain 48 hours of backups. If possible to do incremental backups would be nice but if not, no problem. My droplet is running Ubuntu 12.04 and is using 15-20gb of 40gb. One backup solution I have tried, was to use rysnc on my home computer but failed with it due to that SSH will not working properly and not sure why.