backhaul_freemium

A development-focused, clean-room reverse-tunnel core with high config compatibility for the original script output.

Build

go build -o bin/backhaul_freemium ./cmd/backhaul

Run

./bin/backhaul_freemium -c /path/to/config.toml
./bin/backhaul_freemium -v

Compatible SH Manager

chmod +x scripts/backhaul_freemium.sh
./scripts/backhaul_freemium.sh

The script creates config files under /root/backhaul-core/configs and systemd services named backhaul_freemium-<config_name>.service.

Transport Support Matrix

• tcp: supported
• slipstream (slip/sstream alias): supported (custom handshake + framed stream)
• slipstreammux (slipmux/sstreammux alias): supported (slipstream + mux)
• rawsocket (raw/socketraw alias): supported
• anytls: supported (requires tls_cert and tls_key on server)
• ws / wss: supported (RFC6455 handshake + framing)
• tcpmux / xtcpmux: supported (internal stream multiplexer)
• wsmux / wssmux / xwsmux: supported (ws + mux)
• http / https: supported (HTTP CONNECT control channel, optional TLS)
• httpmux / httpsmux: supported (HTTP CONNECT + mux, optional TLS)
• kcp / kcpmux / xkcpmux: supported (KCP reliable UDP, optional mux)
• grpc / grpcs: supported (gRPC bidirectional control stream, optional TLS)
• grpcmux / grpcsmux: supported (gRPC + mux, optional TLS)
• udp / udpmux: supported (native UDP control channel, with optional mux)
• dns / dnsmux: supported (DNS-style UDP mode, default port 53 if omitted)
• tun: accepted and mapped to mux runtime path for compatibility
  • if [tun].encapsulation = "slipstream" => runtime uses slipstreammux

Port Mapping Formats

• 443
• 443=5000
• 443-600
• 443-600:5201

Sections Parsed

• [listener]
• [dialer]
• [transport]
• [ports]
• [security]
• [tls]
• [logging]
• [mux]
• [tun]
• [ipx]
• [tuning]
• [accept_udp]

Runtime Notes

• token auth is active by default (your_token unless overridden).
• accept_udp = true enables UDP relay through control channels.
• ipx/tun advanced kernel-level behavior is compatibility-mapped and intended for iterative hardening.

Development Workflow

• build binary:

go build -o bin/backhaul_freemium.exe ./cmd/backhaul