OVERVIEW
If you want the backup at your local machine using FTP follow the below steps:
STEPS -
1 - Install the FTP
To install the FTP refer the below link:
https://apiqcloud.com/portal/knowledgebase/222/FTP-Installation-.html
2 - Make the compressed file
Go to your document root.
Eg: If you are using an apache application layer then it should be /var/www/webroot/ROOT.
Make the .tar , .zip , etc. file of ROOT folder.
Then give full permission to a compressed file:
chmod 777 root.tar.gz
3 - Download the file
Download the compressed file using FTP at your local machine.
You can also take the backup using ssh.
wget ftplink/path of file.
Eg : wget ftp://<ftp-user>:<ftp-password>@< IP Address >/webroot/root.tar.gz