[enh] Add graphical program to exchange files

backup.md

@@ -76,6 +76,7 @@ scp /path/to/your/<archivename>.tar.gz admin@your.domain.tld:/home/yunohost.back
 ```
 
 Alternatively, a solution can be to install Nextcloud or a similar app and configure it to be able to access files in `/home/yunohost.backup/archives/` from a web browser.
+You could also use the program [Filezilla](/filezilla) from your computer and which is available for Windows, Linux and macOS.
 
 Restoring backups
 -----------------

filezilla.md

@@ -0,0 +1,104 @@
+# Exchange files with your server graphically
+
+This page will explain how to exchange files with your server graphically so you don't necessary have to use [SCP cryptic commands](/backup) or Nextcloud.
+
+You could want to download your backups or send some music, pictures, movies, ...
+
+[`Filezila`](https://filezilla-project.org/) will be mainly used as it is a free software and is available for Windows, Linux and macOS.
+
+## Requirements
+
+You will need to know the `IP` or `domain name` of your server for being able to connect to it.
+See page [SSH](/ssh) if you don't know this information.
+
+## Filezilla
+
+### Download and install
+
+Get the client from the [download page](https://filezilla-project.org/download.php?type=client). It should autodetect the version needed for your computer. If it fails, follow the instructions to [install the client](https://wiki.filezilla-project.org/Client_Installation)
+
+Install the program and run `Filezila`.
+
+### Configuration
+
+1. Click the *Site Manager* icon in the upper left to begin setting up a connection bookmark for future use.
+
+    ![Main screen of Filezilla](images/filezilla_1.png)
+
+2. Click **New Site** and give a name the server you will be using : *Familly* here. Fill the settings as on the screenshot except for your server which should be yours
+
+    Once finish, click on **Connect**
+
+    ![Site manager screen](images/filezilla_2.png)
+
+3. You will get a warning as you connect for the first time to the server. *You can ignore it safely the first time you get it*
+
+    ![warning about the unknown fingerprint of the server](images/filezilla_3.png)
+
+4. Filezilla is now asking the `admin` password for connecting to your server
+
+    ![credential screen asking for the password](images/filezilla_4.png)
+
+5. Once bookmarked, your server will be backup up and you will get this screen
+
+    ![View of the "site manager" with the newly server added](images/filezilla_5.png)
+
+<div class="alert alert-success">
+  <span class="glyphicon glyphicon-chevron-right"></span> You can now use your new bookmark to connect to the server
+</div>
+
+### Usage
+
+1. Connect to the Site created previously. *Your passwork might be asked again*
+
+    On the left, you have your computer and on the right, the remote Yunohost server. You can navigate between folders as if you were on your computer and do drag and drops.
+
+    ![view while connected to a remote server](images/filezilla_6.png)
+
+2. In the right panel, navigate to `/home/yunohost.backup/archives/` where the backups are stored.
+
+    ![path where backups are located on Yunohost](images/filezilla_7.png)
+
+#### Workaround to retrieve the backups
+
+<div class="alert alert-danger">
+  <span class="glyphicon glyphicon-exclamation-sign"></span> Since Yunohost version 3.3 and the choice to connect as the `admin` user, there is a [limitation](https://github.com/YunoHost/issues/issues/1266) that prevents straight access to the backups folder `/home/yunohost.backup/archives/`
+</div>
+
+Until the issue is solved, you will need to follow [a workaround](/backup_workaround) to manage the backup files.
+
+#### Back to Filezilla
+
+You can now see backups previously copied and download them to your computer.
+
+<div class="alert alert-warning">
+  <span class="glyphicon glyphicon-cloud-download"></span> Be sure to download both files
+</div>
+
+![Copy backups from Yunohost to local computer](images/filezilla_8.png)
+
+----
+
+Sources
+
+* [Official documentation](https://wiki.filezilla-project.org/FileZilla_Client_Tutorial_(en))
+* <https://www.rc.fas.harvard.edu/resources/documentation/sftp-file-transfer/>
+
+## Alternatives to Filezilla
+
+### Windows
+
+* [`WinSCP`](https://winscp.net/) is also a nice candidate for Windows
+
+### Linux
+
+From any recent Linux, you should be able to use the `file manager` to reach your server.
+
+Nautilus from Gnome3 can access out of the box.
+
+* <https://help.gnome.org/users/gnome-help/stable/nautilus-connect.html.en>
+* <https://www.techrepublic.com/article/how-to-use-linux-file-manager-to-connect-to-an-sftp-server/>
+
+### MacOS
+
+Feel free to complete this part