Active Directory Federation Service (ADFS)
ADFS is a Microsoft Windows Server feature used for single sign-on (SSO) authentication across multiple systems or applications.
Configuring ADFS
First install the ADFS Features
After it completes, select Configure the federation service on this server
Select create new
Select the user
Select the SSL Certificate and the Federation Service name
Next specify the service account, this will pops out an error saying Group Managed Service Accounts are not available, just run the provided command on the powershell to resolve the error
Then hit next
After that specify the database, for small lab environment selecting internal database should be fine
Review everythng and then select configure
Close the configuration window
At this point, the adfs page should be up but with an error saying the resource is not available
All we need to do is enable IdP Sign On page using powershell
Now the error should go away
Now we can sign in using an Active Directory user
Hit this link to verify the ADFS is up and running