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        "title": "Clear-DnsServerCache: clear dns server cache against recorded identity and DNS state",
        "summary": "Use Clear-DnsServerCache to review this narrow operational decision without extending the source beyond its stated scope.",
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        "published_at": "2026-08-27T17:02:48+00:00",
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        "potentially_affected": "Teams, systems, services, or facilities within the stated scope of Clear-DnsServerCache",
        "dse_recommendation": "Compare the observed state with the cited official source, document applicability and exceptions, and test any approved change with rollback safeguards.",
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            "name": "Clear-DnsServerCache",
            "url": "https://learn.microsoft.com/en-us/powershell/module/dnsserver/clear-dnsservercache?view=windowsserver2025-ps",
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        "content_html": "<p>Frame this document as a source-led configuration and assurance check: Clear-DnsServerCache: clear dns server cache against recorded identity and DNS state. Only the official source and traced locations below supply facts. Confirm applicability before acting.</p>\n<h2>Source fact:</h2>\n<p>The official <a href=\"https://learn.microsoft.com/en-us/powershell/module/dnsserver/clear-dnsservercache?view=windowsserver2025-ps\" target=\"_blank\" rel=\"noopener noreferrer\">Clear-DnsServerCache</a> from Microsoft supports the following bounded statements:</p>\n<ul>\n<li>At SYNOPSIS, Microsoft states: “Clears resource records from a cache on the DNS server.” The research record locates this support at <strong>SYNOPSIS</strong>.</li>\n<li>At DESCRIPTION, Microsoft states: “The Clear-DnsServerCache cmdlet clears resource records from a Domain Name System (DNS) server cache.” The research record locates this support at <strong>DESCRIPTION</strong>.</li>\n</ul>\n<p>These statements are the factual basis for this document. Do not extend them into a broader assurance. Review Windows DNS servers, AD-integrated zones, policies, forwarders, logging channels, clients, and administrative roles only where the source and recorded environment align.</p>\n<h2>What the source does not establish</h2>\n<p>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. No current deployment state or change approval follows from the source alone. Validate Active Directory replication, domain-controller health, service accounts, routing, time, certificates, and upstream resolution, and treat examples or options as conditional inputs rather than defaults.</p>\n<h2>Applicability questions</h2>\n<ul>\n<li>For source statement 1 at <strong>SYNOPSIS</strong>, which observable configuration, record, or test can confirm applicability here?</li>\n<li>For source statement 2 at <strong>DESCRIPTION</strong>, which observable configuration, record, or test can confirm applicability here?</li>\n<li>Which deployed instance of Windows DNS servers, AD-integrated zones, policies, forwarders, logging channels, clients, and administrative roles will be compared with the source, and why that instance?</li>\n<li>How will the review distinguish a source mismatch from a failure in Active Directory replication, domain-controller health, service accounts, routing, time, certificates, and upstream resolution?</li>\n<li>Who approves the conclusion, exception, test window, and rollback threshold?</li>\n</ul>\n<h2>DSE recommendation:</h2>\n<p>DSE recommends using the cited source as the evidence anchor for this decision. Start with applicability, then compare the observed state with the cited source. 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.</p>\n<p>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.</p>\n<h2>Verification and evidence</h2>\n<p>Keep the source locations <strong>SYNOPSIS</strong>; <strong>DESCRIPTION</strong> adjacent to the sanitized artifacts used for comparison. Prefer PowerShell exports, zone and policy inventories, sanitized query tests, event-channel data, replication state, and rollback commands, with enough identity and timing data for an independent recheck.</p>\n<p>Label this evidence set <strong>DSE-20260827-278</strong> so observations, approvals, exceptions, and later rechecks cannot be substituted from another source review.</p>\n<p>Keep before-state evidence, approval, test or change result, exceptions, and after-state evidence together. Use an approved lab, window, or nonproduction path for risky tests. Set a recheck trigger for version, architecture, dependency, vendor, incident, or ownership change. A check proves only what was observed.</p>\n<h2>Official references</h2>\n<ul>\n<li><a href=\"https://learn.microsoft.com/en-us/powershell/module/dnsserver/clear-dnsservercache?view=windowsserver2025-ps\" target=\"_blank\" rel=\"noopener noreferrer\">Clear-DnsServerCache</a> — Microsoft</li>\n</ul>",
        "content_text": "Frame this document as a source-led configuration and assurance check: Clear-DnsServerCache: clear dns server cache against recorded identity and DNS state. Only the official source and traced locations below supply facts. Confirm applicability before acting.\nSource fact:\nThe official Clear-DnsServerCache from Microsoft supports the following bounded statements:\n\nAt SYNOPSIS, Microsoft states: “Clears resource records from a cache on the DNS server.” The research record locates this support at SYNOPSIS.\nAt DESCRIPTION, Microsoft states: “The Clear-DnsServerCache cmdlet clears resource records from a Domain Name System (DNS) server cache.” The research record locates this support at DESCRIPTION.\n\nThese statements are the factual basis for this document. Do not extend them into a broader assurance. Review Windows DNS servers, AD-integrated zones, policies, forwarders, logging channels, clients, and administrative roles only where the source and recorded environment align.\nWhat the source does not establish\nThe 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. No current deployment state or change approval follows from the source alone. Validate Active Directory replication, domain-controller health, service accounts, routing, time, certificates, and upstream resolution, and treat examples or options as conditional inputs rather than defaults.\nApplicability questions\n\nFor source statement 1 at SYNOPSIS, which observable configuration, record, or test can confirm applicability here?\nFor source statement 2 at DESCRIPTION, which observable configuration, record, or test can confirm applicability here?\nWhich deployed instance of Windows DNS servers, AD-integrated zones, policies, forwarders, logging channels, clients, and administrative roles will be compared with the source, and why that instance?\nHow will the review distinguish a source mismatch from a failure in Active Directory replication, domain-controller health, service accounts, routing, time, certificates, and upstream resolution?\nWho approves the conclusion, exception, test window, and rollback threshold?\n\nDSE recommendation:\nDSE recommends using the cited source as the evidence anchor for this decision. Start with applicability, then compare the observed state with the cited source. 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.\nFor 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.\nVerification and evidence\nKeep the source locations SYNOPSIS; DESCRIPTION adjacent to the sanitized artifacts used for comparison. Prefer PowerShell exports, zone and policy inventories, sanitized query tests, event-channel data, replication state, and rollback commands, with enough identity and timing data for an independent recheck.\nLabel this evidence set DSE-20260827-278 so observations, approvals, exceptions, and later rechecks cannot be substituted from another source review.\nKeep before-state evidence, approval, test or change result, exceptions, and after-state evidence together. Use an approved lab, window, or nonproduction path for risky tests. Set a recheck trigger for version, architecture, dependency, vendor, incident, or ownership change. A check proves only what was observed.\nOfficial references\n\nClear-DnsServerCache — Microsoft",
        "content_markdown": "Frame this document as a source-led configuration and assurance check: Clear-DnsServerCache: clear dns server cache against recorded identity and DNS state. Only the official source and traced locations below supply facts. Confirm applicability before acting.\n\n## Source fact:\n\nThe official [Clear-DnsServerCache](https://learn.microsoft.com/en-us/powershell/module/dnsserver/clear-dnsservercache?view=windowsserver2025-ps) from Microsoft supports the following bounded statements:\n\n- At SYNOPSIS, Microsoft states: “Clears resource records from a cache on the DNS server.” The research record locates this support at SYNOPSIS.\n\n- At DESCRIPTION, Microsoft states: “The Clear-DnsServerCache cmdlet clears resource records from a Domain Name System (DNS) server cache.” The research record locates this support at DESCRIPTION.\n\nThese statements are the factual basis for this document. Do not extend them into a broader assurance. Review Windows DNS servers, AD-integrated zones, policies, forwarders, logging channels, clients, and administrative roles only where the source and recorded environment align.\n\n## What the source does not establish\n\nThe 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. No current deployment state or change approval follows from the source alone. Validate Active Directory replication, domain-controller health, service accounts, routing, time, certificates, and upstream resolution, and treat examples or options as conditional inputs rather than defaults.\n\n## Applicability questions\n\n- For source statement 1 at SYNOPSIS, which observable configuration, record, or test can confirm applicability here?\n\n- For source statement 2 at DESCRIPTION, which observable configuration, record, or test can confirm applicability here?\n\n- Which deployed instance of Windows DNS servers, AD-integrated zones, policies, forwarders, logging channels, clients, and administrative roles will be compared with the source, and why that instance?\n\n- How will the review distinguish a source mismatch from a failure in Active Directory replication, domain-controller health, service accounts, routing, time, certificates, and upstream resolution?\n\n- Who approves the conclusion, exception, test window, and rollback threshold?\n\n## DSE recommendation:\n\nDSE recommends using the cited source as the evidence anchor for this decision. Start with applicability, then compare the observed state with the cited source. 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.\n\nFor 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.\n\n## Verification and evidence\n\nKeep the source locations SYNOPSIS; DESCRIPTION adjacent to the sanitized artifacts used for comparison. Prefer PowerShell exports, zone and policy inventories, sanitized query tests, event-channel data, replication state, and rollback commands, with enough identity and timing data for an independent recheck.\n\nLabel this evidence set DSE-20260827-278 so observations, approvals, exceptions, and later rechecks cannot be substituted from another source review.\n\nKeep before-state evidence, approval, test or change result, exceptions, and after-state evidence together. Use an approved lab, window, or nonproduction path for risky tests. Set a recheck trigger for version, architecture, dependency, vendor, incident, or ownership change. A check proves only what was observed.\n\n## Official references\n\n- [Clear-DnsServerCache](https://learn.microsoft.com/en-us/powershell/module/dnsserver/clear-dnsservercache?view=windowsserver2025-ps) — Microsoft"
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