OpenVPN – VPN Solution

OpenVPN is a robust open-source VPN solution that implements layer 2 or 3 secure network extension. It uses SSL/TLS for key exchange and provides secure remote access.

Key Features

• Cross-Platform: Linux, Windows, macOS, mobile
• Strong Encryption: SSL/TLS based security
• Flexible Authentication: Certificates, username/password
• NAT Traversal: Works through firewalls
• Compression: Optional data compression

Installation

Install OpenVPN on Ubuntu:

sudo apt update
sudo apt install openvpn easy-rsa

Usage Examples

OpenVPN configuration:

# Server configuration
port 1194
proto udp
dev tun
ca ca.crt
cert server.crt
key server.key
dh dh2048.pem
server 10.8.0.0 255.255.255.0
push "redirect-gateway def1"
push "dhcp-option DNS 8.8.8.8"
keepalive 10 120
cipher AES-256-CBC
persist-key
persist-tun

Benefits

OpenVPN provides enterprise-grade VPN without licensing costs. Its flexibility supports various authentication methods and network topologies.

Download OpenVPN