OpenVPN
OpenVPN is a widely supported VPN protocol that uses TLS for authentication and key exchange and can run over UDP or TCP. It's popular because it works ...
OpenVPN is a widely supported VPN protocol that uses TLS for authentication and key exchange and can run over UDP or TCP. It’s popular because it works on nearly every platform and network environment, and it’s highly configurable. OpenVPN can be tuned for reliability on unstable connections and can run on common ports (like 443) to blend in with typical HTTPS traffic, which can help in restrictive networks when paired with obfuscation. Performance varies with configuration: modern ciphers and UDP are usually faster, while TCP can be more stable through some firewalls but may introduce extra latency. OpenVPN remains a strong choice for compatibility and “hard mode” networks, even as WireGuard becomes the preferred option for speed. If you’re troubleshooting VPN issues, OpenVPN’s mature tooling and logs can also make diagnosis easier than more minimal protocols.
Related DVPN Resources
Related resources
View all- Authentication Authentication is how a VPN verifies that you are allowed to connect and how you verify you’re connecting to a legitimate server or …
- Certificates Certificates are digital credentials used to prove identity in cryptographic systems. In VPNs - especially OpenVPN and many enterprise …
- DNS (Domain Name System) DNS translates human-readable domain names (like a website address) into IP addresses so your device can connect. DNS matters for VPN …
- DNS Leak A DNS leak happens when your device sends DNS queries outside the VPN tunnel. DNS requests reveal which domains you’re trying to …
- DNS Leak Protection DNS leak protection is a feature set that prevents DNS queries from bypassing the VPN tunnel. A typical VPN app pushes its own DNS servers, …