I am a new user and maybe asking a silly question, and I really do not hate puppies
I have searched the forum a little but without luck (some copyappend thread)
I would like to user rclone to "something" that allow either sftp and ssh+rsync (hetzner storagebox, BTW)
The problem does not lie in the use of rclone (which is why I did not follow the strict instructions with long "spiegone") but in the equivalent of rsync's switch --append
Most cloud storage providers don't support modifying objects once they are are uploaded - you have to upload a new one - that is why rclone doesn't support --append.
The problem is long to explain, it concerns Windows, ssh on cygwin from old versions with old protocols, and compatibility with hetzer and mandatory sha2
(it is not at all trivial to make an ssh+rsync device work in a portable manner on Windows, if the target system requires a protocol that is supported by the latest OpenSSH versions)
The short version is: given a local pippo file of say 1.000.000.000.500 bytes, and a remote pippo of 1.000.000.000.000 bytes (an earlier version), I want to send just the last 500 bytes of local pippo, adding them to the remote pippo, becoming (after) 1.000.000.000.500, just like the local
Exactly rsync --append
Using a fork of zpaq, I can easily make backups of servers and virtual machines with VDSL connections of a few MB/s, exploiting the feature that the generated files are always in append (on *nix machines I also use the relevant operating system flag)
instead of direct to storagebox, rent a cheap hetzner vm and use that as a middle man.
the vm can run whatever linux os + whatever version of ssh server.