In this article, I will explain how to install Active Directory Federation Services on Server 2019, Lets begin,

Open Server Manager,

Click on Add Roles and Features,

Click Next,

Select Role-based or features-based installation and Click Next,

Select Server and Click Next,

Select Active Directory Federation Services and Click on Next

As we are installing ADFS, Skip the Features and Click on Next

Click on Next

Click on Install to begin the Role Installation

Click on Configure the federation service on this server to begin the Active Directory federation Services

Since we don’t have Existing ADFS Farm, Select Create the first federation server in a federation server farm and Click on Next

Select the ADFS Service account which has active directory permissions to begin the Active directory Services configuration in the AD Forest.

You should have valid Certificate for the Federation Services. it can be third party certificate or Internal CA Certificate..

After certificate validation Completed and names are matching with the Federation Service names, Provide the Display Name and Click on Next

Select the Service account for the Federation Services

You can set the managed service account for Federation Service or you can set domain administrator account also to manage the AD FS. Here I am using domain administrators to manage,

You can use the SQL Database which is installed on Separate server or you can use the default SQL Express which will be installed on AD FS Server, I am proceeding with default one and Click Next,

Click on Next

Click on Configure

You need to add the Host(A) record to point it to ADFS Server and open Internet Explorer and browse the AD FS URL.

Here my AD FS Server  URL:https://STS.windowstechpro.com/adfs/ls/IdpInitiatedSignon.aspx  to access the AD FS SSO,

Click on Sign in and enter the Domain user account and password to validate the federation Services.

You’re able to Sign in to Federation Services which in turn verification to confirm that ADFS Installation is completely successful.