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OSTP (Ospab Stealth Transport Protocol)

OSTP is a fast and secure transport protocol designed to bypass DPI and network restrictions. It masks traffic as high-entropy data, making it difficult to detect or block.

Features

Traffic Obfuscation: Hides VPN/proxy signatures from network analysis.
High Performance: Written in Rust using the gVisor network stack for low latency.
Reliable Connectivity: Built-in keep-alive mechanism for stable operation on mobile networks.
Flexible Modes: Supports SOCKS5/HTTP proxying and full-system TUN (VPN) mode.
Multi-platform: Compatible with Windows, Linux, macOS, and Android.

Installation

Linux

Run the installer script to set up OSTP as a system service:

bash <(curl -Ls https://raw.githubusercontent.com/ospab/ostp/master/scripts/install.sh)

Windows

Run the following in PowerShell as Administrator:

irm https://raw.githubusercontent.com/ospab/ostp/master/scripts/install.ps1 | iex

Configuration

Initialize a default config file:

./ostp --init server # For VPS
./ostp --init client # For local machine

Server (config.json)

{
  "_comment": "OSTP Server Configuration",
  "mode": "server",
  "listen": "0.0.0.0:50000",
  "access_keys": ["YOUR_KEY"],
  "outbound": {
    "enabled": false,
    "protocol": "socks5",
    "address": "127.0.0.1",
    "port": 9050,
    "default_action": "proxy"
  }
}

Client (config.json)

{
  "_comment": "OSTP Client Configuration",
  "mode": "client",
  "server": "SERVER_IP:50000",
  "access_key": "YOUR_KEY",
  "socks5_bind": "127.0.0.1:1088",
  "tun": {
    "enable": false,
    "wintun_path": "./wintun.dll",
    "ipv4_address": "10.1.0.2/24",
    "dns": "1.1.1.1"
  }
}

Usage

Start the node with your configuration:

./ostp --config config.json

For TUN mode on Windows, ensure tun2socks.exe and wintun.dll are in the same directory.

License

Business Source License 1.1. Free for personal and non-commercial use. Converts to MIT License on May 14, 2030.

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