Remote Desktop Services MVPs (Most Valuable Professionals) Freek Berson and Kristin L. Griffin previously posted an excellent step-by-step guide on using Microsoft Azure Multi-Factor Authentication Server to provide two-factor authentication to a Remote Desktop Services deployment. Now, Kristin has published the sequel: Creating a Highly Available Windows 2012 R2 RD Gateway Environment with Azure Multi-Factor Authentication, in which the configuration of multiple Remote Desktop Gateway (RDG) and Azure Multi-Factor Authentication servers in a deployment is discussed. Check it out at RDSGurus.com.
For additional information about Azure Multi-Factor Authentication, see our MSDN documentation.
Note: Questions and comments are welcome. However, please DO NOT post a request for troubleshooting by using the comment tool at the end of this post. Instead, post a new thread in the RDS & TS forum. Thank you.