What software can I use to synchronize files that detects changes on each of my computers and syncs continuously with an always-on server? I'm looking for:
- Running as a service on the server and the clients
- Realtime change detection
- Delta sync (ID3 tag editing shouldn't result in the whole file being transfered, for example)
I have a VPN, so local network only and unencrypted traffic is OK. Services that require cloud storage like DropBox are out since I'm maintaining my own server.
EDIT: I've been using the excellent Cubby (in beta at https://www.cubby.com/). No need for a VPN, seems almost like the holy grail of sync. Online storage is optional, so you have uninhibited direct sync without it.