Why it matters

DNS essential. Cloud DNS is GCP standard.

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The architecture

Public zones: internet-facing.

Private zones: VPC-internal.

Cloud DNS featuresPublic zonesauthoritativePrivate zonesVPC-internalDNSSEC + policiesadvancedDNS peering allows sharing private zones across VPCs
DNS options.
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How it works end to end

DNSSEC: DNS security extensions.

Policies: forwarding, response, alternative name servers.

Peering: share private zones.

Global anycast: fast worldwide resolution.