They are not the same.
Mak sure you are clear which one you want. If you wanrt SFTP, it runs over SSH and it is pretty easy to setup.
https://www.eldos.com/security/articles/4672.php?page=all
To set it up:
http://community.wd.com/t5/My-Book-Live/How-to-Setup-Secure-FTP-SFTP/m-p/602653#M25392