ocserv (OpenConnect VPN Server)
ocserv (OpenConnect VPN Server): A self-hosted VPN server with broad authentication and routing controls, aimed at Linux administrators. Ranked #36 of 53 in Virtual Private Network Software by our editors (5.5/10); pricing: Free plan; best for linux administrators needing an open VPN server.
At a glance
- Editor score5.5 / 10
- PricingFree plan
- Best forLinux administrators needing an open VPN server
- Free planYes
- Paid fromNone
- Remote access VPNYes
- Facts checked28 Sep 2026
Where it wins
- Supports TLS and DTLS with IPv4/IPv6 networking and pushed routes
- Offers PAM, RADIUS, OpenID Connect, Kerberos, smart-card and certificate authentication
- Provides client isolation, bandwidth limits and occtl management interfaces
Where it doesn't
- Server deployment is self-hosted and Linux-only
- Administration and routing require operating the server directly
- Its focus is VPN infrastructure rather than a managed end-user service
Our verdict on ocserv (OpenConnect VPN Server)
ocserv (OpenConnect VPN Server) is open-source server software for organizations that need remote-user VPN access managed on Linux. It is aimed at Linux administrators who want control over authentication, routing and client handling rather than a hosted VPN service. Although the server runs on Linux, documented OpenConnect-compatible clients span Linux, Android, Windows and macOS, so its server platform and client reach are distinct considerations.
The feature set is oriented toward administrator control. TLS and DTLS provide the VPN channels, while IPv4/IPv6 networking and pushed routes support remote access configuration. The project also documents site-to-site routing scenarios. For managing connections, occtl offers interactive command-line and JSON interfaces. Client isolation uses separate processes and network devices, with seccomp listed among its safeguards; administrators can also apply per-client or per-group bandwidth and network-priority limits. This makes ocserv a fit where network policy and routing matter as much as connecting users.
Authentication options include PAM, RADIUS, OpenID Connect, Kerberos, smart cards and certificates, with integrations also including FreeIPA and Microsoft Active Directory. The listed support channels are email, community and documentation, and HSM/TPM-supported private-key protection is available. The tradeoff is operational: ocserv is self-hosted server software, so teams need Linux administration capability and responsibility for its deployment. Organizations seeking a managed service or a simpler end-user VPN offering should look elsewhere; administrators comfortable running infrastructure can consider it for remote access and site-to-site needs.
ocserv (OpenConnect VPN Server) pricing
ocserv (OpenConnect VPN Server) fact sheet
| Free plan | Yes |
|---|---|
| Paid from | None |
| Remote access VPN | Yes |
| Site-to-site VPN | Yes |
| Supported VPN protocols | TLS, DTLS |
| Client platforms | Linux, Android, Windows, macOS |
| Concurrent sessions | Not verified |
| SSO support | Yes |
| Deployment model | Self_hosted |
| Deployment | Self-hosted |
| Platforms | Linux |
| Compliance & security | 2FA |
| Support | Email, Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 6 integrations: PAM, RADIUS, OpenID Connect, Kerberos, FreeIPA, Microsoft Active Directory |
| Pricing | Free plan |
| Website | ocserv.openconnect-vpn.net |
| Facts checked | 28 Sep 2026 |
ocserv (OpenConnect VPN Server) integrations
ocserv (OpenConnect VPN Server) lists 6 integrations on its own site.
- PAM
- RADIUS
- OpenID Connect
- Kerberos
- FreeIPA
- Microsoft Active Directory
Alternatives to ocserv (OpenConnect VPN Server)
- Proton VPNA feature-rich free VPN, with streaming and P2P support reserved for paid plans.9.3
- ExpressVPNA broad-reach VPN with streaming guidance, audited no-logs policy, and tiered plans.9.2
- Private Internet AccessA feature-rich VPN with unlimited connections, P2P support and a low annual entry price.9.1
See all ocserv (OpenConnect VPN Server) alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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