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Make Your Own Backup System – Part 2: Forging the FreeBSD Backup Stronghold
Build a bulletproof backup server with FreeBSD, ZFS, and jails. Complete guide covering encryption, security hardening, and multiple backup strategies for enterprise-grade data protection.
Using VNET jails, for example, will allow the creation of VPNs or tun interfaces inside them, simplifying potential future setups (and increasing security by using a dedicated network stack). I have seen this happen in ransomware cases (especially in the Microsoft world), and so I try to be careful to minimize this type of problem, mainly through snapshots of the backup server (an operation that will be described later). Of course, it depends on the nature of the data (a backup of a static website will have no issues, but a WordPress database probably will), but it's crucial to think about a technique to snapshot the filesystem before proceeding.
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