What is the easiest way to create an automatic backup of the entire contents of a computer disk over a network with a static IP?

Question

Access rights

The system is as follows: there is a local area with a static external IP with a dozen computers, it has a computer for exchanging files (for example, a shared folder). There is a remote computer outside the local network also with a static IP.
It is necessary to copy the contents of the shared folder 1 in 1 to this remote computer, and it is better to copy at specified periods, for example, once a day. Who faced such a task? What software to use? What is better, more convenient?
One more wish: the computer to which everything is copied as a result should be as protected as possible and, it is better that it is not noticeable from the local network.

Answer 1

Try BitTorrent Sync: www.getsync.com/.