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What does Windows error code 9957 (DNS_ERROR_ZONESCOPE_FILE_WRITEBACK_FAILED) mean?

 
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DNS_ERROR_LOAD_ZONESCOPE_FAILED DNS_ERROR_INVALID_SCOPE_NAME

DNS_ERROR_ZONESCOPE_FILE_WRITEBACK_FAILED

DNS_ERROR_ZONESCOPE_FILE_WRITEBACK_FAILED means DNS could not persist a zone-scope data file. For file-backed scopes, Microsoft documents the scope data under the DNS directory for the zone and scope name.

What to check

Get-DnsServerZoneScope -ZoneName "example.com"
Get-DnsServerQueryResolutionPolicy -ZoneName "example.com"

Microsoft: Add-DnsServerZoneScope

Microsoft: Get-DnsServerZoneScope

Microsoft: DNS Policies overview


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