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Tarsnap deduplication across machines



Hi All,

From the documentation, "if you have multiple machines, you almost certainly want to create a separate key file for each machine."  But if I've understood correctly, this will make it impossible to deduplicate files which are stored on more than one of those machines.

Is it possible to reuse a key file across multiple machines?  Does this guarantee deduplication, or would the machine names also need to be the same?  And how would this be accomplished?  (Eg. run tarsnap-keygen, followed by overwriting the generated key file?)

Thanks,
Clayton