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Best way to configure a NAS for the safest, most reliable (as in will not become unusable, not necessarily worried about potential downtime) and least succesptible to ransom? (alien.top)

submitted 11 months ago by Trashrascall@alien.top to c/main@selfhosted.forum

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12tb+ of data and hoping to use it to periodically backup the data of numerous machines.

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[–] mxafi@alien.top 1 points 11 months ago

Assuming you actually want a NAS and not cold storage, I’d recommend at least some kind of raid to account for disk failure.

As for ransomware protection, one decent solution is snapshots and limiting every client to only be allowed access to their own backup directory, or a limited set of directories in general on the NAS, as well as no execution permissions in those directories.

If you’re concerned about the NAS being directly infected by a malicious user with direct access and execute permissions, the only real solution is offsite or cold storage backups.