There’s a router called FritzBox which is very widely used, at least in Germany and the Netherlands, as far as I know. It supports attaching disks to its USB port(s), and then making them available for internet access for pre-configured users. Access is via FTP or FTPS (or SMB, yikes…).
For backup on each other’s sites, I’d like to use this with a friend who has the same FritzBox. All we need is to give each other a hard disk, set up proper access, and configure Duplicacy. right? Eh, well, not quite…
The problem: Duplicacy does not support FTP (AFAICT, and I’m aware of the fact that the user+pw travels in plaintext). I’ve tried SFTP, but that generates protocol errors. As I understand it, FTPS is not SFTP (FTP via SSH), but FTP over SSL/TLS.
Are there plans to support FTPS? (FTP is definitely not very attractive, since anyone could drop in and start messing with the encrypted backups, e.g. delete them…).