Authentik is an open-source identity provider that supports Active Directory (AD) user synchronization, Single Sign-On (SSO), and Multi-Factor Authentication (MFA) for secure access to enterprise applications. By integrating with Apache Guacamole (remote desktop access), Cloudflare Zero Trust (secure web access), MinIO (object storage), and ONLYOFFICE (collaborative document editing), Authentik ensures centralized authentication while enforcing robust security policies. With MFA options such as TOTP, WebAuthn, and push notifications, organizations can significantly enhance security, preventing unauthorized access while providing a seamless user experience across both cloud and on-premise environments.