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Enable TLS 1.2 for Azure AD Connect

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Enable TLS 1.2 for Azure AD Connect

Postby guest » Wed Jul 20, 2016 11:19 am

Azure AD Connect is using TLS 1.0 by default for encrypting the communication between the sync engine server and Azure AD. You can change this by configuring .Net applications to use TLS 1.2 by default on the server. More information about TLS 1.2 can be found in Microsoft Security Advisory 2960358 .
1.TLS 1.2 cannot be enabled on Windows Server 2008. You need Windows Server 2008R2 or later. Make sure you have the .Net 4.5.1 hotfix installed for your operating system, see Microsoft Security Advisory 2960358 . You might have this or a later release installed on your server already.
2.If you use Windows Server 2008R2, make sure TLS 1.2 is enabled. On Windows Server 2012 server and later versions of the server operating systems, TLS 1.2 should already be enabled. [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2] [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client] "DisabledByDefault"=dword:00000000 "Enabled"=dword:00000001 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server] "DisabledByDefault"=dword:00000000 "Enabled"=dword:00000001
3.For all operating systems, set this registry key and restart the server. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319 "SchUseStrongCrypto"=dword:00000001
4.If you also want to enable TLS 1.2 between the sync engine server and a remote SQL Server, then make sure you have the required versions installed for TLS 1.2 support for Microsoft SQL Server.
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