For the installation steps, see the link https://techdirectarchive.com/2018/05/18/simplesamlphp-setup-on-windows-server-2012-r2/
– Connect this to AD
– Ensure it is reachable via HTTPS as shown here
– Register SimpleSAMLphp as the enterprise identity provider with any iDP
– Register an IDP as the trusted service provider with SimpleSAML
– And finally, proceed with testing “enterprise login”.
– For links to other articles on simpleSAML, see the following link below https://techdirectarchive.com/?s=simplesaml