Windows server and functional level compatibility list

Chong 841 Reputation points
2021-07-05T03:24:41.823+00:00

Hi Support,

Do Microsoft have any official documents that list out different Windows Server version support which protocol (SMB, LDAP, TLS, etc)?
How about domain/forest functional level?

I found these documents but seems they cannot proved that new windows version supported all protocol that same as old windows version:

https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/active-directory-functional-levels
https://learn.microsoft.com/en-us/windows/win32/secauthn/protocols-in-tls-ssl--schannel-ssp-
https://learn.microsoft.com/en-us/windows-server/storage/file-server/troubleshoot/detect-enable-and-disable-smbv1-v2-v3

Best Regards
Chong

Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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A set of directory-based technologies included in Windows Server.
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  1. Daisy Zhou 18,701 Reputation points Microsoft Vendor
    2021-07-05T06:52:05.893+00:00

    Hello @Chong ,

    Thank you for posting here.

    Q: Do Microsoft have any official documents that list out different Windows Server version support which protocol (SMB, LDAP, TLS, etc)?
    A: I think the official documents you mentioned are helpful.

    The first link applies to: Windows Server

    The second link applies to: Windows 10, Windows 8.1, Windows 8, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012

    The third link applies to: Windows 10, Windows 8.1, Windows 8, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012

    For LDAP protocol, I did not find any official document. And I only find the following link for your reference.

    Differences between LDAP 2 and LDAP 3
    https://learn.microsoft.com/en-us/previous-versions/windows/desktop/ldap/differences-between-ldap-2-and-ldap-3

    For Windows server Domain Controllers, maybe different Windows servers have different default NTLM authentication level.

    For more information about NTLM authentication level, please refer to link below.

    Network security: LAN Manager authentication level
    https://learn.microsoft.com/en-us/windows/security/threat-protection/security-policy-settings/network-security-lan-manager-authentication-level

    Hope the information above is helpful.

    Should you have any question or concern, please feel free to let us know.

    Best Regards,
    Daisy Zhou

    ============================================

    If the Answer is helpful, please click "Accept Answer" and upvote it.

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  1. Leon Laude 85,646 Reputation points
    2021-07-05T06:29:54.663+00:00

    Hi @Chong ,

    The documentations that you've found are more or less the correct ones and the currently up-to-date ones, these will be updated whenever a new operating system is released.

    LDAP
    https://support.microsoft.com/en-us/topic/2020-ldap-channel-binding-and-ldap-signing-requirements-for-windows-ef185fb8-00f7-167d-744c-f299a66fc00a

    Forest and Domain Functional Levels
    https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/active-directory-functional-levels

    Protocols in TLS/SSL (Schannel SSP)
    https://learn.microsoft.com/en-us/windows/win32/secauthn/protocols-in-tls-ssl--schannel-ssp-

    SMB
    https://learn.microsoft.com/en-us/windows-server/storage/file-server/file-server-smb-overview

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    If the reply was helpful please don't forget to upvote and/or accept as answer, thank you!

    Best regards,
    Leon

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