OpenVPN

Website: openvpn.net

OpenVPN is a robust mature open-source VPN solution using SSL/TLS for secure point-to-point and site-to-site connections.

Key Features

• SSL/TLS Security: AES-256-GCM, ChaCha20-Poly1305
• Rich Authentication: Certificates, LDAP, 2FA, RADIUS
• Flexible Networking: Bridge (TAP) and routing (TUN) modes
• Firewall Traversal: Runs on port 443, blends with HTTPS

Platforms

Linux, Windows, macOS, Android, iOS, BSD

Licence

GNU General Public License v2

Website

openvpn.net