# Import-DnsServerTrustAnchor: import dns server trust anchor with before-and-after evidence > Use Import-DnsServerTrustAnchor to review this narrow operational decision without extending the source beyond its stated scope. - Canonical URL: https://update.dsesecurity.com/updates/import-dnsservertrustanchor-import-dns-server-trust-anchor-with-before-and-after-evidence/ - Publisher: Detection Systems & Engineering (DSE Security) - Author: DSE Security Editorial Team - Published: 2026-08-27T17:03:17+00:00 - Modified: 2026-08-27T17:22:20+00:00 - Last reviewed by DSE: 2026-08-27 - Resource type: Guide - DSE priority: Advisory - Topics: Cybersecurity, Microsoft 365 & Identity, Networks & Infrastructure - Reading time: 3 minutes ## What you need to know Use Import-DnsServerTrustAnchor to review this narrow operational decision without extending the source beyond its stated scope. ## Potentially affected Teams, systems, services, or facilities within the stated scope of Import-DnsServerTrustAnchor ## DSE recommendation Compare the observed state with the cited official source, document applicability and exceptions, and test any approved change with rollback safeguards. ## Article Use this document to connect an official requirement or behavior to observable evidence: Import-DnsServerTrustAnchor: import dns server trust anchor with before-and-after evidence. Only the official source and traced locations below supply facts. Confirm applicability before acting. ## Source fact: The official [Import-DnsServerTrustAnchor](https://learn.microsoft.com/en-us/powershell/module/dnsserver/import-dnsservertrustanchor?view=windowsserver2025-ps) from Microsoft supports the following bounded statements: - At DESCRIPTION, Microsoft states: “The Import-DnsServerTrustAnchor cmdlet imports a trust anchor from a specified file for a Domain Name System (DNS) server.” The research record locates this support at DESCRIPTION. - At DESCRIPTION, Microsoft states: “If you specify a key set file, the cmdlet imports the DNS public key (DNSKEY) record set from the input key set file.” The research record locates this support at DESCRIPTION. Do not import neighboring assumptions into the source record. The supported task is a scoped comparison involving Windows DNS servers, AD-integrated zones, policies, forwarders, logging channels, clients, and administrative roles and the conditions the source actually describes. ## What the source does not establish The cited page and retained statements do not establish the current state of any DSE or customer environment, prove that the documented configuration is applicable, or authorize a production change. Confirm supported versions, dependencies, and the current live source before use. A correct source interpretation can still be inapplicable to a particular design. Confirm Active Directory replication, domain-controller health, service accounts, routing, time, certificates, and upstream resolution, ownership, and change authority instead of treating documented behavior as a deployment guarantee. ## Applicability questions - For source statement 1 at DESCRIPTION, which observable configuration, record, or test can confirm applicability here? - For source statement 2 at DESCRIPTION, which observable configuration, record, or test can confirm applicability here? - What inventory proves which parts of Windows DNS servers, AD-integrated zones, policies, forwarders, logging channels, clients, and administrative roles are in and out of scope? - Which condition in Active Directory replication, domain-controller health, service accounts, routing, time, certificates, and upstream resolution must be healthy before evidence is trustworthy? - What result would disprove the working assumption and return the issue to the owner? ## DSE recommendation: DSE recommends using the cited source as the evidence anchor for this decision. Use a two-person review for the source interpretation and the resulting operational decision. Record the source location, examined part of Windows DNS servers, AD-integrated zones, policies, forwarders, logging channels, clients, and administrative roles, observed and expected states, owner, and reason for deviation. For an approved change, define prerequisites, a limited test path, success and stop conditions, monitoring, and rollback. Check Active Directory replication, domain-controller health, service accounts, routing, time, certificates, and upstream resolution in design order. Protect credentials, keys, recovery material, personal data, and sensitive topology in evidence. ## Verification and evidence Evidence should let another reviewer reproduce this decision. Retain observations beside the traced locations DESCRIPTION; DESCRIPTION. Favor PowerShell exports, zone and policy inventories, sanitized query tests, event-channel data, replication state, and rollback commands, linked to stable identifiers, time, and operator. Label this evidence set DSE-20260827-249 so observations, approvals, exceptions, and later rechecks cannot be substituted from another source review. Preserve both successful and failed observations, along with approval and rollback evidence. Avoid uncontrolled production experiments. Assign an expiry or event-driven recheck so the conclusion is not treated as permanent. ## Official references - [Import-DnsServerTrustAnchor](https://learn.microsoft.com/en-us/powershell/module/dnsserver/import-dnsservertrustanchor?view=windowsserver2025-ps) — Microsoft ## Primary reference - Name: Import-DnsServerTrustAnchor - Authority: Microsoft Learn - URL: https://learn.microsoft.com/en-us/powershell/module/dnsserver/import-dnsservertrustanchor?view=windowsserver2025-ps - Source publication date: Not stated by the source ## Citation and use Preferred citation: “Import-DnsServerTrustAnchor: import dns server trust anchor with before-and-after evidence,” DSE Security, https://update.dsesecurity.com/updates/import-dnsservertrustanchor-import-dns-server-trust-anchor-with-before-and-after-evidence/ Publishing principles: https://update.dsesecurity.com/updates/dse-updates-editorial-methodology/ Usage and citation policy: https://update.dsesecurity.com/usage/ Copyright © 2026 Detection Systems & Engineering. 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