This document provides best practices for the secure planning and deployment of Active Directory Federation Services (AD FS) and Web Application Proxy (WAP). It contains recommendations for additional security configurations, specific use cases, and security requirements. This document applies to AD FS and WAP in Windows Server 2012 R2, 2016, and 2019. These recommendations can be used for either an on-premises network or in a cloud hosted environment such as Microsoft Azure. See full list on learn.microsoft.com For deployment in on-premises environments, we recommend a standard deployment topology consisting of: One or more AD FS servers on the internal corporate network. One or more Web Application Proxy (WAP) servers in a DMZ or extranet network. At each layer, AD FS and WAP, a hardware or software load balancer is placed in front of the server farm, and handles traffic routing. Firewalls are placed, in front of the external IP address, of the load balancer as needed. See full list on learn.microsoft.com Communication between Federation Servers Federation servers on an AD FS farm communicate with other servers in the farm and the Web Application Proxy (WAP) servers via HTTP port 80 for configuration synchronization. Make sure that only these servers can communicate with each other and no other is a measure of defense in depth. Organizations can do achieve this state, by setting up firewall rules on each server. The rules should only allow inbound communication from the IP addresses of the servers in the farm and WAP servers. Some Network Load Balancers (NLB) use HTTP port 80 for probing the health on individual federation servers. Make sure that you include the IP addresses of the NLB in the configured firewall rules. Microsoft Entra Connect and Federation Servers/WAP This table describes the ports and protocols that are required for communication between the Microsoft Entra Connect server and Federation/WAP servers. WAP and Federation Servers This table describes the ports and protocols that are required for communication between the Federation servers and WAP servers. See full list on learn.microsoft.com Ensure all AD FS and WAP servers receive the most current updates. The most important security recommendation for your AD FS infrastructure is to ensure you have a means in place to keep your AD FS and WAP servers current with all security updates, as well as those optional updates specified as important for AD FS on this page. The recommended way for Microsoft Entra customers to monitor and keep current their infrastructure is via Microsoft Entra Connect Health for AD FS, a feature of Microsoft Entra ID P1 or P2. Microsoft Entra Connect Health includes monitors and alerts that trigger if an AD FS or WAP machine is missing one of the important updates specifically for AD FS and WAP. See full list on learn.microsoft.com When you federate your AD FS with Microsoft Entra ID, it is critical that the federation configuration (trust relationship configured between AD FS and Microsoft Entra ID) is monitored closely, and any unusual or suspicious activity is captured. To do so, we recommend setting up alerts and getting notified whenever any changes are made to the feder... See full list on learn.microsoft.com Extranet "soft" lockout protection for accounts With the extranet lockout feature in Windows Server 2012 R2, an AD FS administrator can set a maximum allowed number of failed authentication requests (ExtranetLockoutThreshold) and an observation window time period (ExtranetObservationWindow). When this maximum number (ExtranetLockoutThreshold) of authentication requests is reached, AD FS stops trying to authenticate the supplied account credentials against AD FS for the set time period (ExtranetObservationWindow). This action protects this account from an AD account lockout, in other words, it protects this account from losing access to corporate resources that rely on AD FS for authentication of the user. These settings apply to all domains that the AD FS service can authenticate. You can use the following Windows PowerShell command to set the AD FS extranet lockout (example): For reference, see Configuring AD FS Extranet Lockout to learn more about this feature. Disable WS-Trust Windows endpoints on the proxy from extranet WS-Trust Windows endpoints (/adfs/services/trust/2005/windowstransport and /adfs/services/trust/13/windowstransport) are meant only to be intranet facing endpoints that use WIA binding on HTTPS. Exposing them to extranet could allow requests against these endpoints to bypass lockout protections. These endpoints should be disabled on the proxy (i.e. disabled from extranet) to protect AD account lockout by using following PowerShell commands. There is no known end user impact by disabling these endpoints on the proxy. Differentiate access policies for intranet and extranet access AD FS has the ability to differentiate access policies for requests that originate in the local, corporate network vs requests that come in from the internet via the proxy. This differentiation can be done per application or globally. For high business value applications or applications with sensitive information, consider requiring multifactor authentication. Multifactor authentication can be set up via the AD FS management snap-in. See full list on learn.microsoft.com The purpose of this article is to outline the steps necessary to use the Snowflake New URL format OR configure Privatelink with ADFS. Please note this article outlines configuration steps if you are integrating ADFS with Snowflake for the first time. How to configure Privileged Access Manager integration with your company's existing ADFS infrastructure to provide SSO authentication services. Perform the steps in this section on an AD CS (CA) system serving the AD FS server. This Integration Guide relies on the availability of an Enterprise Microsoft AD CS (CA) server within the Active Directory forest. I am setting up a new ADFS Server but our Domain is private abc.local. We do have a public domain for our email xyz.com and we would like to use our other domain name that we own xyz.net, for the ADFS Server. Active Directory Federation Services (ADFS) is a software solution developed by Microsoft that can run as a component on Windows Server operating systems. It provides SSO to applications that cross organization boundaries by the secure sharing of entitlement rights and digital identity.
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