Re:Bup – towards the perfect backup
by mappu on Tuesday November 18, 2014 @12:31AM
(#8622512)
I guess it depends on your security model. With one single pull backup,
- if your backup box is on another network then it can be coerced into malicious reads (leaking private information, trade secrets, your competitive advantage etc).
- if it's on the same network then it's subject to your same failure patterns.
Push backup has some disadvantages, but there's a lot of peace-of-mind in never (intentionally) granting additional users access to the unencrypted data.
Two-tier is one approach. There's another comment in this thread about snapshotting filesystems (ZFS, or i suppose LVM snapshots might be easier) which would be another method of addressing concerns about the client tampering with the backed up data.
- if your backup box is on another network then it can be coerced into malicious reads (leaking private information, trade secrets, your competitive advantage etc).
- if it's on the same network then it's subject to your same failure patterns.
Push backup has some disadvantages, but there's a lot of peace-of-mind in never (intentionally) granting additional users access to the unencrypted data.
Two-tier is one approach. There's another comment in this thread about snapshotting filesystems (ZFS, or i suppose LVM snapshots might be easier) which would be another method of addressing concerns about the client tampering with the backed up data.