First post - be gentle!
I have the job of setting up a replacement fileserver which will hold very
sensitive data. I intend using CentOS, with encrypted /tmp, /swap and /home
(where all the files will be stored). Bacula will be used for backups, backing
up onto LTO-3 tapes. In order to maintain security of data, I'd like to use
encrypted backups. That way if any storage media whatsoever leave the office
the data is still safe.
My question is: in the event of a catastrophic failure, can an encrypted backup
be used to restore to an identical bare server? I will have the relevant
keyfiles backed-up in a safe, and depending on size I will keep paper copies
securely as well. In a worst-case scenario, would I be able to build a new
server identical to the old by following my own documentation, restore the
keyfiles, and then restore from exisiting encrypted backup tapes?
Ideally I'd like to be able to get things up and running quicker by using the
bare metal restore functionality of bacula, using a bootstrap file stored on a
CD, but I understand from previous posts that encrypted tapes can't be restored
this way.
Can anyone point me in the right direction here? The bare-metal restore seems
to be the only stumbling block in my plan.
Thanks in advance...
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