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OpenVPN Access Server vs defguard: catalog facts
OpenVPN Access Server	defguard
Freemium Free for two simultaneous VPN connections; more connections need a paid plan.	Freemium Free to try and open source, with paid enterprise plans.
Linux, Self-hosted	Linux, Self-hosted
Runs entirely on your own server or cloud account Many authentication options including LDAP, RADIUS and SAML with TOTP	MFA enforced on each WireGuard connection LDAP, Active Directory and OIDC integration
Proprietary, unlike the OpenVPN Community edition Aimed at businesses, with paid plans for more users	Aimed at organisations, more than a single user needs Some features sit in paid enterprise plans
Self-hosted	Downloadable app, Self-hosted
Closed source	Open source
License: Proprietary	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.