Tailscale's 'tailcat' tool enables private TCP routing without control plane dependency

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Tailscale has released 'tailcat', a lightweight tool that functions like netcat over Tailscale's data plane while bypassing its control plane entirely. The project gained significant traction on GitHub, accumulating around 790 stars in a single day. It is designed for infrastructure teams who need to move TCP traffic between trusted private nodes without publicly exposing services or adding VPN control dependencies. A common use case involves routing AI inference gateway traffic securely within a private Docker network, keeping sensitive endpoints off the public internet. Engineers are advised to handle concerns like quota enforcement and key rotation at the gateway layer, leaving tailcat focused solely on private transport.

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