Trojan V2Ray Tutorial: Setup, Configuration, and Usage

Trojan V2Ray Tutorial: A Comprehensive Guide to Setup, Configuration, and Usage

Trojan is a lightweight, censorship-circumvention tool that utilizes the TLS protocol to disguise its traffic as regular HTTPS traffic, making it difficult for network censors to detect and block. When combined with V2Ray, a powerful and versatile proxy software, Trojan becomes an even more robust solution for bypassing internet restrictions and accessing blocked content. This comprehensive tutorial will guide you through the process of setting up, configuring, and using Trojan with V2Ray on various platforms, including Linux (using systemd), Windows, and macOS.

I. Understanding Trojan and V2Ray

Before diving into the setup, it’s crucial to understand the roles of both Trojan and V2Ray in this combined setup.

• Trojan: Acts as the frontend, encapsulating your traffic within a TLS tunnel, mimicking regular HTTPS traffic. This helps bypass deep packet inspection (DPI) employed by censors. It primarily focuses on obfuscation and relies on a server-side certificate for authentication.

• V2Ray: Acts as the backend, handling the actual routing and proxying of your traffic. V2Ray supports various protocols like VMess, Shadowsocks, and SOCKS, providing flexibility and performance optimization.

The synergy between Trojan and V2Ray allows for a secure, fast, and censorship-resistant connection. Trojan disguises the traffic, while V2Ray provides the underlying transport and routing mechanisms.

II. Server-Side Setup (Linux)

This section details setting up the Trojan and V2Ray server on a Linux system using systemd for service management.

1. Install Dependencies:
   bash
sudo apt update
sudo apt install -y curl wget unzip nginx certbot

2. Download and Install V2Ray:
   Refer to the official V2Ray documentation for the latest installation instructions. You can use pre-built binaries or compile from source.

3. Download and Install Trojan-Go:
   bash
wget https://github.com/trojan-gfw/trojan-go/releases/download/v1.18.1/trojan-go-linux-amd64.zip
unzip trojan-go-linux-amd64.zip
sudo mv trojan-go /usr/bin/trojan-go
sudo chmod +x /usr/bin/trojan-go
   (Replace v1.18.1 with the latest version available.)

4. Generate a TLS Certificate:
   bash
sudo certbot certonly --standalone -d your_domain.com
   (Replace your_domain.com with your actual domain name.)

5. Configure Trojan:
   Create a configuration file named /etc/trojan-go/config.json:
   json
{
"run_as": "nobody",
"log_level": 1,
"local_addr": "0.0.0.0",
"local_port": 443,
"remote_addr": "127.0.0.1",
"remote_port": 1080, // V2Ray inbound port
"password": [
"your_trojan_password" // Replace with a strong password
],
"ssl": {
"cert": "/etc/letsencrypt/live/your_domain.com/fullchain.pem",
"key": "/etc/letsencrypt/live/your_domain.com/privkey.pem",
"sni": "your_domain.com"
}
}

6. Configure V2Ray:
   Create a configuration file named /etc/v2ray/config.json:
   json
{
"inbounds": [
{
"port": 1080,
"protocol": "socks",
"settings": {
"clients": [
{
"user": "your_v2ray_user", // Optional
"pass": "your_v2ray_password" // Optional
}
]
}
}
],
"outbounds": [
{
"protocol": "freedom",
"settings": {}
}
]
}

7. Create Systemd Service Files:

8. Trojan: /etc/systemd/system/trojan-go.service:
   “`ini
   [Unit]
   Description=Trojan-Go Service
   After=network.target

   [Service]
   Type=simple
   User=nobody
   Group=nobody
   ExecStart=/usr/bin/trojan-go -config /etc/trojan-go/config.json
   Restart=always
   RestartSec=10

   [Install]
   WantedBy=multi-user.target
   “`

9. V2Ray: /etc/systemd/system/v2ray.service:
   “`ini
   [Unit]
   Description=V2Ray Service
   After=network.target

   [Service]
   Type=simple
   User=nobody
   Group=nobody
   ExecStart=/usr/bin/v2ray/v2ray -config /etc/v2ray/config.json
   Restart=always
   RestartSec=10

   [Install]
   WantedBy=multi-user.target
   “`

10. Enable and Start the Services:
    bash
sudo systemctl daemon-reload
sudo systemctl enable trojan-go.service v2ray.service
sudo systemctl start trojan-go.service v2ray.service

11. Verify Installation:
    Check the status of the services: sudo systemctl status trojan-go.service v2ray.service.

III. Client-Side Setup (Windows, macOS, Linux)

You can use various Trojan clients on different operating systems. Here are a few options:

• v2rayN (Windows): A user-friendly GUI client that supports both V2Ray and Trojan.
• Clash (Cross-platform): A powerful command-line and GUI based client supporting various protocols, including Trojan.
• Qv2ray (Cross-platform): Another GUI client with advanced features and support for multiple protocols.

Configuration Example (v2rayN):

1. Download and install v2rayN.
2. Add a new server profile by clicking the “+” button.
3. Select “Trojan” as the protocol.
4. Enter your server’s domain name or IP address, port (443), and your Trojan password.
5. Save the profile.

IV. Advanced Configuration and Optimization

• WebSocket over TLS (ws/wss): For increased obfuscation, you can configure Trojan and V2Ray to use WebSocket over TLS. This makes the traffic appear even more like regular web traffic.

• CDN Integration: Using a Content Delivery Network (CDN) can further mask your traffic and improve performance.

• Multiple Users: V2Ray allows you to configure multiple users with different access levels.

• Routing Rules: Implement custom routing rules within V2Ray to direct specific traffic through the proxy while allowing other traffic to bypass it.

• Failover and Load Balancing: Configure multiple server instances for redundancy and distribute traffic efficiently.

V. Security Considerations

• Strong Passwords: Use strong and unique passwords for both Trojan and V2Ray.

• Regular Updates: Keep your server and client software updated to patch security vulnerabilities.

• Firewall Rules: Configure firewall rules to restrict access to your server.

• Server Hardening: Secure your server by disabling unnecessary services and implementing security best practices.

VI. Troubleshooting

• Connection Issues: Check the server and client logs for error messages. Verify that the server is running and accessible.

• Performance Problems: Optimize V2Ray settings, consider using a different protocol, or upgrade your server resources.

• DNS Leaks: Ensure your DNS requests are being routed through the proxy to prevent DNS leaks.

This comprehensive tutorial provides a detailed overview of setting up, configuring, and using Trojan with V2Ray. Remember to replace the example configurations with your actual details and adjust the settings based on your specific needs. By following these steps and considering the security recommendations, you can effectively bypass internet censorship and enjoy a secure and private online experience. Always consult the official documentation for both Trojan and V2Ray for the latest information and updates.