Reply to post: NILFS2

BlackBerry claims it can do to ransomware what Apple did to its phones

Norman Nescio


It could also be NILFS2 snapshots. NILFS2 implements an approach where each file system change (checkpoint) can be (but does not have to be) treated as a snapshot, which allows a very fine-grained approach. If you combine this with sufficient LVM snapshots*, you would be able to roll back any file to any point in its history.

*Take an LVM snapshot before the NILFS2 circular buffer overwrites itself, back it up, then repeat as necessary ad infinitum.

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