How to create client-server connexion for openmediavault-borgbackup plugin

[zandet97]

Hello,

I have been trying for several hours to find out how to connect my machine A (openmediavault, where the borgbackup plugin has been installed on the Workbench) to a machine B (ubuntu) with borgbackup installed. I would like to make backups of data located on machine A to machine B using borg (machine B must have all the backups (archive). I followed a few tutorials, including one on the official documentation, but I don't still don't understand how to configure SSH keys. I'm stuck at this step!
I have already created the public and private key on machine A using ssh_keygen. Is it on machine A that I have to create the public and private keys or on machine B?
Is the next step to copy the public key (created by machine A) to machine B? If yes, how to proceed please? (which commands? in which folder should I copy this key? etc.)
Also from the borgbackup plugin (machine A, Workbench), I added an environment variables to indicate where my private key is :
Nom : BORG_RSH
Valeur : ssh -i /root/.ssh/id_borg-backup-plugin

Can you clearly tell me how to proceed please, because the different tutorials are given on different dates, it is difficult to follow correctly. Some even no longer seem relevant for the current version of the borgbackup plugin?

Thank you beforehand.

My System :
Debian 11, bullseye
Linux openmediavault 5.16.0-0.bpo.4-amd64 #1 SMP PREEMPT Debian 5.16.12-1~bpo11+1 (2022-03-08) x86_64 GNU/Linux
openmedivault information :
Release : 6.0.24-1
Codename : Shaitan

[ryecoaaron]

It would be better to create a forum post since more people see it.

The only part of this guide that should have changed, you don't have to use the command line for the BORG_RSH environment variable.

[ryecoaaron]

You should update your system as well. You are using all old packages from the ISO.

[zandet97]

It would be better to create a forum post since more people see it.

The only part of this guide that should have changed, you don't have to use the command line for the BORG_RSH environment variable.

I did not modify the environment variable from the command line but from the user interface of the borg plugin (Workbench omv) (there is a section intended for the environment variable for borg plugin)

I followed the guide but it does not explain how to configure the SSH keys for the plugin (Different steps to create and configure the keys on machines A and B)