Le partage de fichiers et répertoires entre partenaires, sur internet, sans serveurs, sans pub, et sans difficultés :
Install BitTorrent Sync on the devices you want to sync. Choose a folder that you want to synchronize and generate a secret for that folder on one of the devices. The secret is random and unique, and functions like a key that connects multiple devices into one sync network. On the other devices, choose a folder to sync and enter the same secret.