fastd

fastd is a secure and efficient lightweight VPN (Virtual Private Network) software. It is a command-line tool and a core component of the fastd project. fastd is designed to provide secure, authenticated, and encrypted connections between different clients across the internet.

Some key features of fastd include:

1. Security: fastd uses strong encryption algorithms (such as Curve25519 for key exchange and XSalsa20Poly1305 for data encryption) to ensure secure communication between clients.

2. Performance: It is designed to be fast and efficient, optimized for high-speed networking and low latency.

3. Flexibility: fastd can be easily configured and customized to fit different network setups and requirements, allowing for various routing schemes and connection architectures.

4. Scalability: It supports multiple connections simultaneously, making it suitable for scenarios where many clients need to connect securely to a central server.

5. Reliability: fastd includes features like automatic reconnection, connection monitoring, and fault-tolerance to ensure stable and reliable VPN connections.

Overall, fastd is a reliable and secure command-line tool that provides a lightweight VPN solution for creating secure networks over the internet. It is widely used in various applications, including mesh networking, site-to-site VPNs, and secure remote access.