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[Help] Double Backup Issue with Rsync over ssh

Posted: 24 Aug 2026, 01:17
by yxyx999
Hi all,

i am using a Terramaster F8 with TOS7 as the primary device, and an Unifi NAS for Backups. While I would like to stick with the Terramaster BBS Tools, I am running into the issue, that I cannot use the Double Backup App for Backups to the Unifi NAS.

Unifi provides an RSync service with rsync over SSH. When I run

Code: Select all

rsync -e ssh [User Name]@[IP]::
in the Terminal on the Terramaster, I can view every folder on the Unifi NAS; however, when I configure credentials in the Double Backup App, no destination folder appears.

Also, I noticed it reports a successful connection no matter which IP, port, or username I enter; however, when I use the standard Backup App with the Rsync Server via SSH on port 22—as noted in the Unifi Settings—it indicates a connection failure.

Maybe someone here uses a similar setup, but I would like to avoid using over tools through docker for this.

Re: [Help] Double Backup Issue with Rsync over ssh

Posted: 24 Aug 2026, 11:00
by CursaYang
Image

Please refer to the image to export the Duple Backup logs and debug logs. Then send them to our technical support email at support(at)terra-master.com. We will analyze the logs.