Multi Factor Authentication in SharePoint

MFA

Publishing SharePoint with Windows Server 2012 R2 Web Application Proxy
https://blogs.msdn.microsoft.com/sambetts/2014/12/10/publishing-sharepoint-with-windows-server-2012-r2-web-application-proxy/

SharePoint Server and Web Application Proxy – continued
https://blogs.msdn.microsoft.com/sambetts/2015/07/01/sharepoint-server-and-web-application-proxy-continued/

ADFS

Configure Additional Authentication Methods for ADFS
https://docs.microsoft.com/en-us/windows-server/identity/ad-fs/operations/configure-additional-authentication-methods-for-ad-fs

Beginners Guide to Claims-based Authentication, AD FS 3.0, and SharePoint 2013 – Part II: Installing and Configuring AD FS 3.0

http://info.summit7systems.com/blog/beginners-guide-to-claims-based-authentication-ad-fs-3-0-and-sharepoint-2013-part-ii-installing-and-configuring-ad-fs-3-0

more from the cloud engineer

http://thecloudengineer.blogspot.com/2011/12/adfs.html

SharePoint Authentication

Office 365

New video for the Azure-based federated authentication for Office 365 deployment (Sept 2017)
https://blogs.technet.microsoft.com/solutions_advisory_board/2017/08/31/new-video-for-the-azure-based-federated-authentication-for-office-365-deployment/

SharePoint 2013

ADFS 3.0 Setup – Great article from MCM Wictor Wilen
SharePoint 2013 with SAML Claims and SharePoint Hosted Apps
http://www.wictorwilen.se/sharepoint-2013-with-saml-claims-and-sharepoint-hosted-apps
SharePoint 2013 with SAML Claims and Provider Hosted Apps
http://www.wictorwilen.se/sharepoint-2013-with-saml-claims-and-provider-hosted-appsUsing SharePoint Apps with SAML and FBA Sites in SharePoint 2013

Using SharePoint Apps with SAML and FBA Sites in SharePoint 2013
http://blogs.technet.com/b/speschka/archive/2012/12/07/using-sharepoint-apps-with-saml-and-fba-sites-in-sharepoint-2013.aspx
Compare OpenID vs SAML vs OAuth
http://www.softwaresecured.com/2013/07/16/federated-identities-openid-vs-saml-vs-oauth/#
http://www.mutuallyhuman.com/blog/2013/05/09/choosing-an-sso-strategy-saml-vs-oauth2/
ADFS supports Oauth 2.0
http://blogs.technet.com/b/ad/archive/2013/07/10/extending-device-support-in-active-directory.aspx

ADFS 2.0
http://technet.microsoft.com/en-us/magazine/ff721824.aspx
Authentication Learning Roadmap
http://technet.microsoft.com/en-us/library/jj937859.aspx
More Good Reading (Jason Jeffas – thanks)
http://blogs.technet.com/b/speschka/
http://blogs.technet.com/b/speschka/archive/2009/11/05/configuring-forms-based-authentication-in-sharepoint-2010.aspx?Redirected=true
More from TheCloudEngineer
http://thecloudengineer.blogspot.com/2013/02/authentication.htm
http://thecloudengineer.blogspot.com/2011/12/claims.html
http://thecloudengineer.blogspot.com/2011/12/adfs.html

Using ADFS in SharePoint Authentication

Hacking ADFS in Office 365
http://blogs.architectingconnectedsystems.com/2017/09/03/trust-o365s-trust-others/

Advanced Trace Debugging in ADFS
https://migration-blog.com/2015/11/26/adfs-how-to-enable-trace-debugging-and-advanced-access-logging/

Claims-based Authenication - UAG and ADFS
http://technet.microsoft.com/en-us/library/hh285675.aspx

ADFS Setup-by-Step
http://blogs.technet.com/b/speschka/archive/2010/07/30/configuring-sharepoint-2010-and-adfs-v2-end-to-end.aspx