Do I need ADFS for SSO?

A solid directory service is a critical prerequisite for SSO. There are two main access protocols you may be aware of: Active Directory Federation Services (ADFS) and Lightweight Directory Access Protocol (LDAP).

What replaced ADFS?

The simple answer is ‘yes’! Microsoft released an update to Azure AD Connect in June 2017 called Seamless Single Sign-On (also known as SSO) that offers a simpler and more cost-effective SSO solution for Office 365 than ADFS.

Does Office 365 require ADFS?

Office 365 requires a trusted certificate on your ADFS server. Therefore, you must obtain a certificate from a third-party certification authority (CA). When you customize the certificate request, make sure that you add the Federation server name in the Common name field.

Is Microsoft ADFS free?

Even though ADFS is a free feature on Windows Server, commissioning ADFS requires a Windows Server license and a server to host the ADFS service, which comes at a cost to the organization.

Can I get rid of ADFS?

You can get rid of all the ADFS servers and infrastructure. Best practice however suggests that servers hosting these services should be treated as tier 0 servers.

Is ADFS free?

What rights does ADFS service account need?

The ADFS service account only requires Domain Administrator privileges during the installation for the first ADFS server of the ADFS farm.


A SAML 2.0 identity provider (IDP) can take many forms, one of which is a self-hosted Active Directory Federation Services (ADFS) server. ADFS is a service provided by Microsoft as a standard role for Windows Server that provides a web login using existing Active Directory credentials.

How do you decommission ADFS?

Uninstall the ADFS Servers Starting with the secondary nodes, uninstall ADFS with Remove-WindowsFeature ADFS-Federation,Windows-Internal-Database. After this run del C:\Windows\WID\data\adfs* to delete the database files that you have just uninstalled.

Is there a way to sign in without ADFS?

It’s a good start, but still not the seamless authentication many users expect. There is another way of providing zero-touch logins to Microsoft services without ADFS, which is Azure AD Domain Join. Windows 10 is a requirement here, but beyond that, the setup is quite easy if you’re already configured for Azure AD.

When to use Azure AD seamless single sign on?

Azure Active Directory Seamless Single Sign-On (Azure AD Seamless SSO) automatically signs users in when they are on their corporate devices connected to your corporate network. When enabled, users don’t need to type in their passwords to sign in to Azure AD, and usually, even type in their usernames.

When to change single sign on in AD FS 2016?

AD FS 2016 – Single Sign-On and authenticated devices. AD FS 2016 changes the PSSO when requestor is authenticating from a registered device increasing to max 90 Days but requiring an authentication within a 14 days period (device usage window).

What is application access and single sign-on with azure?

With password-based sign-on, users sign on to the application with a username and password the first time they access it. After the first sign-on, Azure AD supplies the username and password to the application. Password-based single sign-on uses the existing authentication process provided by the application.