EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Hacker News·Aug 26·5 min read
Tailcat: Secure Tunnels in Seconds (Tailscale)
TL;DR
Tailcat is a new tool that enables secure, point-to-point communication between machines using Tailscale's data plane without requiring a Tailscale account. It allows for quick setup of encrypted tunnels, making it easier to connect devices securely and efficiently.
✦ Why It Matters
Start using Tailcat today to simplify secure connections between your machines without needing a Tailscale account.
Key Takeaways
- Use Tailcat for quick, secure machine-to-machine communication.
- Run a Tailcat server without root access for easy setup.
- Leverage free DERP relays for NAT traversal.
- Explore open-source code to customize Tailcat for your needs.
How It Works
Tailcat establishes secure connections by using WireGuard for encryption and Tailscale's magicsock for NAT traversal. A server generates a unique connection token, which clients use to connect securely.
The initial connection is facilitated through Tailscale's DERP relay network, which helps in NAT hole-punching to enable direct peer-to-peer communication when possible.