Add DNS over HTTPS cmdlets documentation

[sruthytv1988]

PR Summary

This PR adds documentation for DNS over HTTPS (DoH) configuration cmdlets for Windows Server 2025.

These cmdlets enable administrators to configure encrypted DNS communications using the DoH protocol (RFC 8484), providing enhanced security for DNS queries. The documentation includes comprehensive examples, parameter descriptions, and RFC compliance notes.

This change is planned for public preview and GA.

Cmdlets Added/Updated

• New: Get-DnsServerEncryptionProtocol - Retrieves DNS over HTTPS encryption settings
• New: Set-DnsServerEncryptionProtocol - Configures DNS over HTTPS encryption settings

Validation Completed

• All markdown files pass validation
• Examples tested and verified on Windows Server 2025
• Preview disclaimer added to all cmdlets
• RFC 8484 (DoH) and RFC 3986 (URI) compliance documented
• Parameter descriptions complete (no placeholders)
• Cross-references between cmdlets verified
• Help XML generated and tested locally with Get-Help

Testing Details

• Tested On: Windows Server 2025 build
• Verification:
  • Get-Help Get-DnsServerEncryptionProtocol -Full displays all sections correctly
  • Get-Help Set-DnsServerEncryptionProtocol -Examples shows all examples
  • All cmdlet examples execute successfully
  • URI template pipe-separated format works as documented
  • DNS service restart behavior confirmed

[sruthytv1988]

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PoliCheck Scan Report

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[sruthytv1988]

@sruthytv1988 please read the following Contributor License Agreement(CLA). If you agree with the CLA, please reply with the following information.

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[sruthytv1988]

@microsoft-github-policy-service agree company="Microsoft"

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit dca945c:

⚠️ Validation status: warnings

File	Status	Preview URL	Details
docset/winserver2025-ps/DnsServer/DnsServer.md	⚠️Warning	View (WindowsServer2025-ps)	Details
docset/winserver2025-ps/DnsServer/Get-DnsServerEncryptionProtocol.md	✅Succeeded	View (WindowsServer2025-ps)
docset/winserver2025-ps/DnsServer/Set-DnsServerEncryptionProtocol.md	✅Succeeded	View (WindowsServer2025-ps)

docset/winserver2025-ps/DnsServer/DnsServer.md

• Line 0, Column 0: [Warning: PSMD2Yaml_InconsistentCmdletsInModule] Inconsistent cmdlets found in module: DnsServer. 2 cmdlets in the module folder but not listed in the module file: Get-DnsServerEncryptionProtocol, Set-DnsServerEncryptionProtocol.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

[learn-build-service-prod]

Learn Build status updates of commit dca945c:

⚠️ Validation status: warnings

File	Status	Preview URL	Details
docset/winserver2025-ps/DnsServer/DnsServer.md	⚠️Warning	View (WindowsServer2025-ps)	Details
docset/winserver2025-ps/DnsServer/Get-DnsServerEncryptionProtocol.md	✅Succeeded	View (WindowsServer2025-ps)
docset/winserver2025-ps/DnsServer/Set-DnsServerEncryptionProtocol.md	✅Succeeded	View (WindowsServer2025-ps)

docset/winserver2025-ps/DnsServer/DnsServer.md

• Line 0, Column 0: [Warning: PSMD2Yaml_InconsistentCmdletsInModule] Inconsistent cmdlets found in module: DnsServer. 2 cmdlets in the module folder but not listed in the module file: Get-DnsServerEncryptionProtocol, Set-DnsServerEncryptionProtocol.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.