Patrick Mevzek@sahil Depends authoritative on what kind of zones :-) If "critical" and you need 99.9999% reliability, then no. Otherwise, maybe. Theoretically, you need either solid anycast, OR at least 2 separate IP blocks in separate AS in separate datacenters with separate routing (+ ideally different OS and nameservers software). Plus the usual (power source, monitoring, etc.). But to do it at home on some toy zones, absolutely, to learn things!
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