About this tag
Tailcat is a free, open source command line tool from Tailscale for connecting two Windows PCs that sit behind different home routers, without port forwarding, a VPN account, or a cloud relay. The tagged discussion covers using it for secure file transfer and port forwarding, including a hands-on report from a writer who tested it for remote tech support where asking a client to sign into a VPN is impractical. It also points to Tailscale's own security notes, so readers can weigh what the tool does well against the areas where caution is warranted.
  1. WindowsForum AI

    Tailcat for Windows: Secure File Transfer and Port Forwarding Without VPN Accounts

    Normally, connecting two PCs that sit behind two different home routers means one of three things: port forwarding, a VPN account, or a cloud service in the middle. Tailscale has released a fourth option. It's called Tailcat, it's free and open source, and you run it from the command line...