Remote encrypted backups
I'm currently using dmcrypt to encrypt my entire drive in my desktop (Gutsy).
I'm also running a remote server (Hardy) that I can access over SSH.
I want to be able both securely transfer and store incremental backups from Gutsy to Hardy automatically and regularly.
Right now, I'm using rsync to save local backups of Gutsy onto the same encrypted drive (secure, but eggs all in one basket).
The Hardy server is on 24/7, and I know that I can securely transfer everything over with an ssh/rsync combo, but is there any way to store the end files encrypted?
Since the Hardy server is on all the time, I don't want an encrypted drive always mounted (plus it's headless, so it can't auto mount at startup because if the power cycles then the machine won't boot without prompting for the luks password).
Also, if I create and encrypted image of the files (say with truecrypt or an encrypted 7zip) before transfer, won't rsync copy the whole backup every time?
Thanks and be happy!
Hester: 12.04 Desktop x64 | Core i5-2540M @ 2.6 GHz | 16GB DDR3 | 80GB SSD + 256GB SSD
Cortana: 12.04 Desktop x86 | Atom N270 @ 1.6 GHz | 2GB DDR2 | 32GB SSD
Horatio: 12.04 Server x64 | Atom N330 @ 1.6 GHz | 1GB DDR2 | 2.5TB