Merge pull request MicrosoftDocs#28886 from RobdeJong/patch-51

Update how-to-connect-install-prerequisites.md
jhakulin · Apr 15, 2019 · e9a2ada · e9a2ada
2 parents b148bec + 7be69f0
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diff --git a/articles/active-directory/hybrid/how-to-connect-install-prerequisites.md b/articles/active-directory/hybrid/how-to-connect-install-prerequisites.md
@@ -44,6 +44,7 @@ Before you install Azure AD Connect, there are a few things that you need.
 
 ### Azure AD Connect server
 * Azure AD Connect cannot be installed on Small Business Server or Windows Server Essentials before 2019 (Windows Server Essentials 2019 is supported). The server must be using Windows Server standard or better.
+* Installing Azure AD Connect on a Domain Controller is not recommended due to security practices and more restrictive settings that can prevent Azure AD Connect from installing correctly
 * The Azure AD Connect server must have a full GUI installed. It is **not supported** to install on server core.
 * Azure AD Connect must be installed on Windows Server 2008 R2 or later. This server must be domain joined and may be a domain controller or a member server.
 * If you install Azure AD Connect on Windows Server 2008 R2, then make sure to apply the latest hotfixes from Windows Update. The installation is not able to start with an unpatched server.