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what:

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    rsync-based backups.

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scripts:

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    rsync-wrapper:

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        Provides an rsync wrapper binary (scripts/pvlbackup-rsync-wrapper) intended to be used via ~/.ssh/authorized_keys:

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            command="/usr/local/bin/pvlbackup-rsync-wrapper --readonly --restrict-path=/foo" ssh-rsa ...

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        XXX: the current implementation is not exactly security-audited, the restrictions serve more to avoid mistakes, and do not protect against

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             determined misuse of your ssh key..

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        LVM Snapshots:

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            As an additional feature, rsync-wrapper provides support for reading LVM volumes as snapshots:

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                rsync -ax foohost:lvm:vg00:lv00 /media/backup/foohost-lv00

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            This will transparently create a snapshot, mount it (read-only), and run the server-side rsync from within the mounted snapshot.

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            TODO:

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                * fsck?

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    rsync-snapshot:

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        Manage hardlinked snapshots stored for configureable intervals.

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        Uses rsync --link-dest.