My YunoHost server
Hardware: Raspberry Pi 3, at home
YunoHost version: 11.0.11
I have access to my server : Through SSH and through the webadmin
Are you in a special context or did you perform some particular tweaking on your YunoHost instance ? : no
If your request is related to an app, specify its name and version: filebrowser 2.23.0~ynh2
Description of my issue
I use Filebrowser (v.2.23.0~ynh2) and I want to use it as a backup location for files on my laptop.
Rather than sign into it via a web browser every time and organise everything by hand, I thought I’d use
rsync’s SSH capability to sync the files across to the server, like this:
$ sudo rsync --delete -Phaze 'ssh -p [X]' /example/source/directory/ email@example.com:/home/yunohost.app/filebrowser/me
…where [X] refers to the port number I’m using for SSH (I’ve changed it from 22).
However, when I try this, it throws up an error about permissions:
rsync: [Receiver] ERROR: cannot stat destination "/home/yunohost.app/filebrowser/me": Permission denied (13)
I notice that the destination
me/ folder is owned by a user named
filebrowser, which is a member of a group also named
me/ folder’s permissions for ‘others’ are
r-x, so I could modify them to
rwx to allow myself to write to the folder remotely, but for security I don’t want to make the folder so accessible.
Is there any other way to allow my laptop, or more specifically the sole
user of my laptop, to write to the
me/ folder on my server?
To connect to your server with a certain user, and do operations with another one, you might be interested by the explanations on this topic.
I tried following the advice there, including editing the server’s
/etc/sudoers file*, and have reached the point where I am typing the below into the command line. I open two terminal windows; on one I SSH into the server and on the other (as my laptop user) I type:
sudo rsync --delete --rsync-path 'sudo echo "mypassword" | sudo -Su filebrowser /usr/bin/rsync' -Phauze 'ssh -p X' /home/MyLaptop/Desktop/example/ firstname.lastname@example.org:/home/yunohost.app/filebrowser/me
… where “
mypassword” is my Yunohost admin password, and X is the port number I’m using for SSH. Here I’m doing a test run with a simple, empty text file sitting in a folder called
example on my Desktop.
It returns these error messages:
[sudo] password for admin: rsync: connection unexpectedly closed (0 bytes received so far) [Receiver]
rsync error: error in rsync protocol data stream (code 12) at io.c(228) [Receiver=3.2.3]
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: error in rsync protocol data stream (code 12) at io.c(228) [sender=3.2.3]
General internet searches suggest that code 12 rsync errors can have a wide variety of causes but I haven’t singled any out in my case. One suggestion is that it’s a known bug in rsync itself… which doesn’t help.
* Re. my server’s
/etc/sudoers/ file, I used
sudo visudo to edit it and added an entry for user
admin underneath the one for
root, which was already there, under the heading:
# User privilege specification
root ALL=(ALL:ALL) ALL
admin ALL=(filebrowser:filebrowser) /usr/bin/rsync
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