If you are reading this, you have probably ran into the same issue that I have that
when using QNAP HBS and you browse the remote backup server, the home or /home.
Through the research I have done, unfortunately, there is no quick fix for this.
It seems that QNAP have a rule across the board that all root folders containing the
word home are hidden from view. This is quite a big issue when it comes to backing
up to remote rsync servers over SSH as Linux users are typically stored in the /home
directory.
On your linux server, you are going to have to move your Linux user to another directory.
What I did was created a root folder on my Linux server called backup and moved
this specific user there.
For the purpose of this explanation, I am going to user the user backupuser. So make
sure you replace this with your real user.
sudo mkdir /backup
sudo mv /home/backupuser /backup/
usermod -d /backup/backupuser backupuser
If /home resides on its own partition with much larger space, you may need to move
and/or alter some partitions to ensure /backup has enough storage space for your
QNAP backups.
Once setup, you should now be able to navigate to the /backup directory on the remote server.
Good luck!