OpenVPN Access Server is a self-hosted business VPN solution that provides secure network access with zero-trust controls. It is deployable on Linux, virtual appliances, containers, or major public cloud platforms. Zero-Trust Controls: Access Server enforces multi-dimensional verification across identity (role-based access), device (unauthorized device rejection), and location (geo-restrictions and configurable trusted access points). Authentication: Supports multiple authentication methods including PAM, RADIUS, LDAP, SAML, local, and custom configurations. MFA via TOTP is supported, and multiple authentication methods can be active simultaneously per user or user group. Performance: Uses OpenVPN DCO (Data Channel Offload) to offload encryption and decryption to the kernel, enabling near wire-speed performance with multi-threaded operation. High Availability: Clustering support allows multiple servers to operate together with auto-failover, load distribution, and location-optimized smart routing — all under a single subscription. Client Access: End users connect via the OpenVPN Connect client app, which supports Windows, macOS, Android, iOS, and ChromeOS. Connection profiles can be provisioned via URL. Compliance: Access Server is backed by SOC 2 Type 2 and ISO/IEC 27001:2022 certifications, and HIPAA compliance support. Deployment options include AWS, Google Cloud Platform, Microsoft Azure, IBM Cloud, DigitalOcean, and Oracle Cloud.