Robin Laing wrote:
OK, now it is an option to create encrypted partitions with F10 during
install. With this, the issue of backups gets changed and I wonder how
people are dealing with it.
I am about to install a system where each users home directory will be
encrypted and mounted on login and unmounted on logout.
Now the question comes to how to make automatic backups of these
encrypted partitions when they are not mounted. This has to take into
account that the backup needs to be as secure as the original users
directories.
Is there a tool that allows partition backups of only the changes as
with incremental backups? Do we just have to clone the partition and
make copies of that each time?
It is a question that I have posed to our IT staff and they have not
thought about it either.
What you want is a copy-on-write system to record the changes. Too bad you
didn't go the whole way on security and run each users in a virtual machine.
Then you could make a COW image of the partition, let the user run with that,
then back up only the changed pages. When the backup gets large, commit the
changes and take a "full" (whole partition) backup, and make a new working COW
image for the user to use.
I do similar with development VMs, make some changes, run with it a while to see
that they were *good* changes, then commit. Each day I back up only the
differences between the reference image and the working image.
--
Bill Davidsen <davidsen@xxxxxxx>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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