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DNS_ERROR_ZONE_ALREADY_EXISTS
DNS_ERROR_ZONE_ALREADY_EXISTS means the server already hosts a zone with that name. The correct response is usually to inspect and reuse or modify the existing zone, not to create a second competing configuration.
What to check
- List the matching zone and confirm its type, storage, and replication scope.
- Check for a similarly named forward, reverse, or automatic reverse zone.
- If the existing zone is wrong, plan a controlled migration or replacement that preserves needed records and delegations.
Get-DnsServerZone -Name "contoso.com"Microsoft: DNS zone types and zone transfers
Microsoft: DNS architecture, SOA, and authoritative zones
Microsoft: DNS logging and diagnostics
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