Recently, I ordered a new VPS and had to setup backups to my remote FTP server. This time around I chose to use the default system as a opposed to the legacy system that I’m familiar with. I setup all my options yet no matter what I did the backups never transferred to my remote FTP account. It was driving me nuts! I Googled around and found the answer. I’m posting it here.
Basically you have to find the remote location’s name in /var/cpanel/backups. This will be the name you chose for the backups location plus a unique ID and edit it’s file to add upload_system_backup: 1 to the tail end of the file. You can read the full documentation here: