Cloudflare Tunnel

edgetunnel is a project for running V2Ray inside edge and serverless runtimes, including Cloudflare Workers and related edge-function environments.

Tether is an open-source Linux Wayland desktop bridge for iPhone Continuity features, developed in the zackb/tether repository. It provides Wi-Fi clipboard synchronization and file transfer, while Bluetooth handles SMS/iMessage messaging, notifications, and calls; connections use TLS 1.2 with pinned self-signed certificates. The project includes a Linux daemon, CLI, GTK desktop app, iOS companion app, and browser and mail extensions for OTP handling and autofill. Clipboard sync, file transfer, the iOS app, extensions, and messaging are marked stable, while notification mirroring, phone calls, and AirPods support are experimental. It can be installed through Arch Linux, AppImage, Flatpak, Nix, or from source, and is licensed under the MIT License.

Tailscale is a networking service for creating private WireGuard-based networks between a user's devices and servers. It can provide remote access over SSH and route traffic through an authorized device configured as an exit node, such as a local Mac, so external websites see that device's network address rather than the server's data-center address. The project includes the open-source `tailscaled` daemon and `tailscale` command-line tool, with the daemon running on Linux, Windows, macOS, and to varying degrees on FreeBSD and OpenBSD. The repository also supplies code used by Tailscale's mobile applications; platform-specific GUI wrappers and hosted-service components are separate. Packages are provided for several distributions, and the project uses WireGuard with authentication features including 2FA, OAuth, and SSO.

Tailcat is an open-source Go CLI and library from Tailscale that provides Netcat-style connections over Tailscale's encrypted data plane without using the Tailscale control plane or requiring a Tailscale account. A server generates a connection token containing WireGuard and relay metadata; a client uses the token to establish an end-to-end encrypted tunnel, initially through a DERP relay, while magicsock attempts NAT traversal and a direct peer-to-peer UDP connection. Its userspace networking stack does not alter routing tables, DNS settings, or require root access. The CLI can pipe standard input and output between machines, forward local TCP ports, provide an unauthenticated SSH server, run commands through a SOCKS5 proxy, act as an exit node, ping and inspect connection tokens, and publish tokens through DNS TXT records. The Go library exposes server and client APIs for dialing TCP ports through the tunnel. Tailcat can use Tailscale's public rate-limited DERP relays or user-operated relays, and an experimental WebAssembly browser demo supports file and text transfer. The project states that its CLI, API, and wire format have no stability guarantees.

Cloudflare is an internet infrastructure and security platform that provides hosting and delivery infrastructure for applications, agents, websites, and data. Its network combines compute, connectivity, and security at edge locations, with Workers running code close to users and backend data; the company states that its network operates in more than 335 cities and reaches 95% of the world's Internet-connected population within 50 milliseconds. Cloudflare also provides AI crawler controls that let site owners inspect, allow, or block crawler activity, along with pay-per-crawl and a monetization gateway for pages, data sets, APIs, MCP tool calls, files, and search indexes. The described x402 flow uses an HTTP 402 response to request payment, after which an agent pays, retries with proof, and Cloudflare verifies the payment at the edge.