OpenVPN

OpenVPN is an open-source VPN solution that provides secure, encrypted connections over untrusted networks such as the Internet.
It uses the SSL/TLS protocol for key exchange and supports a wide range of configurations, including:

• Point-to-point and site-to-site connections
• Remote access for individual clients
• Bridging or routing configurations
• IPv4 and IPv6 support

Key Features

• Strong Security: Uses industry-standard encryption (OpenSSL library) to protect data.
• Cross-Platform: Runs on Linux, Windows, macOS, FreeBSD, OpenBSD, Solaris, and more.
• Highly Configurable: Supports TCP or UDP transport, multiple tunneling modes, and fine-grained access controls.
• Authentication Options: Password, certificate-based, multi-factor authentication, and smart cards.
• Extensible: Integration with scripts, plugins, and management interfaces.

Typical Use Cases

• Securely connecting remote employees to a company network
• Linking branch offices over the public internet
• Protecting sensitive data while using public Wi-Fi
• Bypassing censorship and geo-restrictions