I have a client who needs to back up some flat files from a remote server running Ubuntu server 12.10 (which i know very little about), and they want to back them up to another server in another state via the internet, securely, but only sending changed files each night.
Currently the secure pathway is FTPS with filezilla server on the windows server (2008 r2), with a 2048bit ssl certificate. But, we can probably engineer almost anything else.
The first backup will be about 3gb - then maybe 25mb/day of changed files after that
What are some suggestions to get this done? It will be a push from Ubuntu into Windows, over the internet, and needs to be at least ssl secured.
I have almost no access to the Ubuntu server, i'm only relaying information to the admin in charge of that - i have full control over the server 2008 r2 machine and network.