title: How to enforce Azure AD authentication on IIS server level
body: <p>Is there any possibility to configure IIS server to enforce Azure Active Directory authentication in hosted application? I don't want to apply any changes to app's code, it would be great to provide this authentication only on server level/layer (configuration IIS). Is this even possible? </p>
  
  <p>EDIT</p>
  
  <p>I have situation like this:</p>
  
  <p>Have many applications from a customers. Have Azure AD and users added  there. I need to provide Azure AD authentication to these applications. Moreover, i shouldn't do anything with code of these applications so i thought that i can try to enforce authentication not on application level but on server level. I've been searching informations about possibility of this method but can't find any (only application scenarios supported by Azure AD <a href="https://azure.microsoft.com/pl-pl/documentation/articles/active-directory-authentication-scenarios/" rel="nofollow">https://azure.microsoft.com/pl-pl/documentation/articles/active-directory-authentication-scenarios/</a>  ).  The only thing i have found is Azure Multi-Factor Authentication but i don't think it is helpful.</p>