Learn how to implement Multi-Factor Authentication (MFA) in OpenStack through this 28-minute technical presentation focused on Keystone, OpenStack's identity manager service. Discover the fundamental principles of MFA integration with Keystone, including detailed configuration steps and practical implementation guidance. Explore the authentication workflow, understand how Keystone manages API communications within the OpenStack infrastructure, and gain insights into setting up secure user authentication protocols. Delve into specific challenges encountered during custom software integration as a secondary authentication method, while examining the functionality's limitations and constraints. Perfect for OpenStack infrastructure providers and system administrators seeking to enhance their security implementations through MFA deployment.