OVERVIEW
If you want the backup at your local machine without using FTP.
STEPS -
1 - Make the compressed file
Take the web ssh of the application/database layer.
Go to the path where your data is stored.
Eg: If you are using an apache application layer then it should be /var/www/webroot/ROOT.
Make the .tar, .zip, etc. file of the ROOT folder.
2 - Move the compressed file
Move the compressed file to the document root.
Then give full permission to a compressed file:
chmod 777 root.tar.gz
3 - Browse the compressed file path
<IP>/root.tar.gz OR <domain>/root.tar.gz.
Note: It should have public IP.
From this, you can download the compressed file at your local machine.
Another way to download the compressed file by command line is
wget http://<IP>/root.tar.gz OR
wget http:// <domain>/root.tar.gz