VPN-Chainer 🛡️

A powerful WireGuard VPN chaining tool with dynamic routing, automated service control, and API support.

🔹 Overview

VPN-Chainer allows you to chain multiple WireGuard VPNs together, dynamically reordering routes for improved anonymity and security. It includes auto-installation as a system service, API-based VPN rotation, and a customizable pre/post spin-up/down hook system.

Now, you can optionally test VPN speeds and select the fastest VPNs using --fastest.

📦 Available on PyPI - Install easily with pip install vpn-chainer

---

⚡ Features

✅ Multi-Hop VPN Chaining – Connect through multiple WireGuard VPNs in random order.
✅ Speed-Tested VPN Selection – Use --fastest to pick the top VPNs based on download speed.
✅ Automatic Routing & Firewall Rules – Seamless packet forwarding between VPN interfaces.
✅ Pre/Post Execution Hooks – Run custom scripts before and after VPN chain events.
✅ Remote API Support – Securely rotate VPNs via a web API.
✅ Auto-Installation as a Systemd Service – Persistently run VPN-Chainer in the background.

---

🚀 Installation

1️⃣ Prerequisites

Ensure you have Python 3 and WireGuard installed:

sudo apt update  
sudo apt install -y python3 python3-pip wireguard  

2️⃣ Install VPN-Chainer from PyPI

Easy installation via pip:

sudo pip install vpn-chainer

🔄 Alternative: Install from Source

If you prefer to install from source:

git clone https://github.com/a904guy/VPN-Chainer.git  
cd VPN-Chainer  
sudo python3 setup.py install

⚡ Quick Start

After installation, you can immediately start using VPN-Chainer:

# Install the package
sudo pip install vpn-chainer

# Set up your WireGuard configs in /etc/wireguard/
# Then run with 2 VPNs
sudo vpn-chainer 2

# Or use the fastest VPNs
sudo vpn-chainer 3 --fastest

---

🛠️ Usage

🔹 Basic Usage

sudo vpn-chainer <number_of_vpns>  

For example, to create a 3-hop VPN chain:

sudo vpn-chainer 3  

🔹 Use Speed Testing to Select Fastest VPNs

To test all VPNs first and pick the top N fastest VPNs, use --fastest:

sudo vpn-chainer 3 --fastest  

🚀 This will:

• Test all available VPNs in /etc/wireguard/
• Select the top 3 fastest VPNs
• Use them in the VPN chain

🔹 Install as a Systemd Service

Automatically install and enable the VPN-Chainer service:

sudo vpn-chainer 3 --auto-install  

Once installed, it will start automatically on boot.

To stop or restart the service:

sudo systemctl stop vpn-chainer  
sudo systemctl restart vpn-chainer  

To view logs:

sudo journalctl -u vpn-chainer -f  

---

🔗 API Usage

Rotate VPN Remotely

VPN-Chainer provides an API to trigger VPN rotations. The API key is displayed on startup:

[INFO] VPN-Chainer API running at:  
🔗 http://127.0.0.1:5000/rotate_vpn?key=6a1f-45e9...  

To rotate VPNs:

curl -X GET "http://127.0.0.1:5000/rotate_vpn?key=YOUR_API_KEY"  

This will:

• Tear down the current VPN chain.
• Randomly select new VPN configs (or use fastest if started with --fastest).
• Reestablish routing and firewall rules.

---

⚙️ Hook System (Pre/Post Execution Scripts)

VPN-Chainer allows you to run scripts before and after VPN activation/deactivation.

🔹 Hook Script Locations

Scripts should be placed in:

/etc/vpn-chainer/hooks/  

Hook Script Name	Triggered When
pre-spin-up.sh	Before the VPN chain starts
post-spin-up.sh	After the VPN chain is established
pre-spin-down.sh	Before VPNs are torn down
post-spin-down.sh	After all VPNs have shut down

🔹 Example Hook: Restart Tor After VPN Starts

Edit /etc/vpn-chainer/hooks/post-spin-up.sh:

# !/bin/bash  

echo "[HOOK] Restarting Tor for anonymity..."  
systemctl restart tor  

Then enable the hook:

chmod +x /etc/vpn-chainer/hooks/post-spin-up.sh  

---

📂 Configuration Files

VPN-Chainer automatically selects random WireGuard config files from:
/etc/wireguard/*.conf

Ensure that at least the number of VPN configs requested exists. Additionally the Address line is required.

Example VPN config:

[Interface]  
PrivateKey = <YOUR_PRIVATE_KEY>  
Address = 10.13.36.109/24  
DNS = 10.8.0.1  

[Peer]  
PublicKey = <PEER_PUBLIC_KEY>  
Endpoint = 10.10.10.24:51820  
AllowedIPs = 0.0.0.0/0  
PersistentKeepalive = 25  

---

❓ Troubleshooting

🔸 VPN Doesn't Start

• Check that you have WireGuard installed:

which wg  

If missing, install it:

sudo apt install wireguard  

• Ensure you have enough VPN config files in /etc/wireguard/.

🔸 Systemd Service Not Running

• Check status:

sudo systemctl status vpn-chainer  

• Restart it:

sudo systemctl restart vpn-chainer  

🔸 API Not Responding

• Ensure VPN-Chainer is running:

sudo systemctl status vpn-chainer  

• Check firewall rules (port 5000 must be open):

sudo ufw allow 5000/tcp  

---

📜 Roadmap

✔️ Multi-Hop Randomization
✔️ Pre/Post Execution Hooks
✔️ Auto-Install as a Systemd Service
✔️ Speed-Tested VPN Selection (--fastest) (Added in v1.1)
🔜 Web Dashboard for Control & Logs
🔜 VPN Failover Detection ❓❓
🔜 Split-Tunneling (Selective Routing) ❓❓
🔜 Submit Your Ideas Via Issues

---

🤝 Contributing

Want to improve VPN-Chainer? Contributions are welcome! Fork the repository and submit a PR.

1. Fork & Clone
   git clone https://github.com/a904guy/VPN-Chainer.git cd vpn-chainer

2. Make Changes & Test
   sudo python3 vpn-chainer.py 3

3. Submit a Pull Request

---

📜 License

This project is licensed under the MIT License.

---

👨‍💻 Author

💡 Created by Andy Hawkins
🌐 GitHub: a904guy GitHub Profile

---

🚀 VPN-Chainer is your ultimate tool for anonymous, multi-hop VPN tunneling! 🔥 💬 Have questions or feature requests? Open an Issue on GitHub! 😎