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What is ADFS?

AD FS in Windows Server 2016 [AD FS 2016] enables you to add industry standard OpenID Connect and OAuth 2.0 based authentication and authorization to applications you are developing, and have those applications authenticate users directly against AD FS.+
AD FS 2016 also supports the WS-Federation, WS-Trust, and SAML protocols and profiles we have supported in previous versions. If you are interested in developer guidance for these protocols, see the article here. This article will focus on how to use and benefit from the newer protocol support.
Active Directory Federation Services (ADFS) is a software component developed by Microsoft that can be installed on Windows Server operating systems to provide users with single sign-on access to systems and applications located across organizational boundaries.
 
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