How to Sync Files Between Computers Without Storing Them in the Cloud
 

So you have multiple computers and you want to keep your files in sync, but you don’t want to store them on someone else’s servers. You’ll want a service that synchronizes files directly between your computers.

With such a service, you can synchronize an unlimited amount of files and people can’t gain access to your files just by gaining access to an account on a server and viewing the files via the web interface.

We’re focused on syncing files over the network here — either over a local network or the Internet. We’re looking for Dropbox-style solutions that don’t store files on a central server like Dropbox does.

http://www.howtogeek.com/166424/how-...-in-the-cloud/