Configuring SimpleSAMLPHP

Connect this to AD

Ensure it is reachable via HTTPS as shown here -> http://xx.1xx.xxx.xxx/simplesaml/module.php/core/frontpage_welcome.php

Register SimpleSAMLphp as the enterprise identity provider with any iDP

Register an IDP as the trusted service provider with SimpleSAML and finally

You can continue testing enterprise login.

 

Links
https://community.esri.com/groups/arcgis-online-templates/blog/2014/12/31/setting-up-enterprise-logins-using-simplesamlphp