OpenVPN VPN Protocol
OpenVPN is the gold standard for VPN protocols, offering unmatched reliability, extensive configuration options, and proven security through decades of use.
What is OpenVPN?
OpenVPN is the gold standard for VPN protocols, offering unmatched reliability, extensive configuration options, and proven security through decades of use.
Key Advantages
- Decades of real-world security audits and hardening
- Highly configurable with extensive customization options
- Can bypass firewalls using TCP port 443 (HTTPS)
- Open-source with transparent security implementation
When to Use OpenVPN
- When maximum security and reliability are paramount
- For bypassing strict firewalls using TCP port 443
- In corporate or business environments requiring proven security
- When connecting through restrictive networks
Technical Specifications
Protocol Comparison
Compare OpenVPN with other protocols
| Feature | WireGuard | OpenVPN | V2Ray |
|---|---|---|---|
| Speed | 10/10 | 7/10 | 8/10 |
| Security | 9/10 | 10/10 | 8/10 |
| Stability | 9/10 | 10/10 | 8/10 |
| Best For | Next-Gen Speed & Security | Battle-Tested Reliability | Bypass Censorship with Ease |
| Encryption | ChaCha20 | AES-256-GCM | AES-128-GCM or ChaCha20-Poly1305 |
| Ports | UDP 51820 (default) | N/A | N/A |
Frequently Asked Questions
Everything you need to know about OpenVPN
Yes, OpenVPN is generally slower due to its larger codebase and more complex encryption handshake. However, the difference is often negligible for everyday browsing and only becomes noticeable with very high-speed connections.
UDP is faster and recommended for most users. Use TCP mode when UDP is blocked by firewalls, or when connecting through restrictive networks. TCP on port 443 can disguise VPN traffic as regular HTTPS.
Absolutely. OpenVPN with AES-256 encryption and modern TLS 1.3 remains one of the most secure VPN protocols available. It's been extensively audited and is trusted by security professionals worldwide.
OpenVPN's 400,000+ lines of code reflect its extensive feature set, compatibility layers, and decades of development. While larger codebases can have more potential vulnerabilities, OpenVPN's maturity means it's been thoroughly vetted.
Yes, OpenVPN TCP can run on port 443 (the standard HTTPS port), making it difficult for firewalls to block without blocking all HTTPS traffic. This is ideal for restrictive networks like schools or workplaces.
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