The list of compatible 3rd party Mac compatible backup software on DreamHost's forum seems to have a HUGE OVERSIGHT... the inability to back up remote servers. I'll list the recommended apps here:
Strongsync: This appears to be a DropBox type service. I don't think it can copy files from remove servers to DreamOjbects.
Arq: This product appears to backup your local machine only (again, I need it to copy files from remove servers to DreamOjbects)
CloudBerry Backup: No mac support. Not an option.
Duplicati: Impossible to install. All attempts failed. Not an option.
Immortal Files: I don't think it can copy files from remove servers to DreamOjbects.
So there you have it... NO MAC APPS with the ability to copy files from remove servers to DreamOjbects.
IMPORTANT: GoodSync was able to copy files from remove servers to DreamOjbects... but now the app is much more strict and demands true Amazon S3 URLs and is rejecting the "objects.dreamhost.com" URLs... so any attempt to use GoodSync with DreamObjects is now failing.
PLEASE POINT ME TO SOME BACK-UP SOFTWARE THAT WILL: 1) WORK ON A MAC, 2) WORK WITH REMOVE SERVERS, AND 3) WORK WITH DREAMOBJECTS.