Online connecting to my database using connection string

I have a back of my base on ftp. Now I working on my base using front which is in local network. But I would like to work online. So I have to connect to my base from the Internet. I read about connection string. But where should I past code of connection string and how to use it? Is there someone who know how to connect?

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=\\SerwerFTP\base\myBase.accdb; Jet OLEDB:Database Password=MyDbPassword;