OpenVPN Access Server vs Tailscale

OpenVPN Access Server is a business VPN hosted in a customer's environment, including Linux systems, virtual appliances, containers and public clouds. Its free plan lasts indefinitely, includes all features, requires no credit card and permits up to two simultaneous connections. Growth costs $7 a month per connection and supports up to 2,000 connections; Enterprise & IoT has custom pricing and unlimited connections. A 14-day trial is available for five or more connections. Administrators have a Web UI, self-service client UI, CLI, REST API and automation templates. Authentication options include PAM, RADIUS, LDAP, SAML, local and custom methods. User- and group-level access controls are available, as are protocol and port restrictions. Identity, device and location context can be used to control application access. OpenVPN Connect supports Windows, macOS, Android, iOS and ChromeOS. Deployment options include Docker, Hyper-V, VMware ESXi, Kubernetes Helm and public cloud marketplaces. The listed security and compliance items include SOC 2 Type 2, ISO/IEC 27001:2022, HIPAA and GDPR.

Tailscale is a zero-config VPN for connecting users and devices across a network. It uses WireGuard to form low-latency peer-to-peer connections, which Tailscale says are end-to-end encrypted so it cannot read users’ traffic. Administrators can use access control lists to specify which users may connect to which devices. Supported identity providers handle authentication, and SCIM supports user and group provisioning. Monitoring features include configuration audit logs, network flow logs, webhooks, and log streaming to SIEM partners. Device posture information can be used in connectivity rules. Taildrop transfers files between devices, while node sharing lets users share a node without exposing it to the public internet. The service runs on Android, iOS, Linux, macOS, web, and Windows. Personal is free forever for non-commercial use and supports up to six users; Standard costs $8 per user per month. Premium costs $18 per user per month and includes priority support.