Production DNS with BIND 9 and Unbound
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Lesson 7 of 12 · Resolver, DNSSEC and mail

Unbound resolver: access control, cache, internal zones and DNS over TLS

1 h Debian 12 Versions Unbound 1.17 (Debian 12), Unbound 1.19 (Ubuntu 24.04), Unbound 1.22 (Debian 13), Unbound 1.16+ (Rocky 9)

Objective

Bring ml-dns-10 (10.20.0.10) into service as the resolver for the offices and the VPN: reserved for MasterLinux networks, fast thanks to a well-tuned cache, able to resolve internal zones, resilient when authoritative servers fail, and discreet towards the outside world.

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