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ocserv vs defguard: catalog facts
ocserv	defguard
Free Free and open source under GPLv2.	Freemium Free to try and open source, with paid enterprise plans.
Linux, Self-hosted	Linux, Self-hosted
Works with OpenConnect and AnyConnect-compatible clients Radius, OpenID Connect, Kerberos and smart card authentication	MFA enforced on each WireGuard connection LDAP, Active Directory and OIDC integration
Linux server only Needs network and authentication setup experience	Aimed at organisations, more than a single user needs Some features sit in paid enterprise plans
Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License: GPL-2.0	License not stated
No account 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.