Real-Time IP Blocker (Windows)

A Python GUI tool to dynamically block/unblock IP addresses using Windows Firewall rules in real-time. This tool allows users to block or unblock specific IP addresses for inbound, outbound, or both traffic directions. Useful for network access control, cybersecurity labs, system administration, and educational purposes.

🔧 Features

• Block IP addresses using Windows Firewall
• Unblock IP addresses with dropdown selection
• Inbound / Outbound / Both direction blocking supported
• Automatic DNS flush after unblocking
• Real-time command log window
• GUI built with Python tkinter
• JSON-based rule storage for easy management
• Requires Administrator privileges to modify firewall rules

💻 Technologies Used

• Python 3.x
• tkinter (GUI)
• subprocess module (system command execution)
• netsh (Windows Firewall command-line tool)
• ipconfig (DNS flushing)

⚠ Requirements

• Windows OS
• Python 3 installed
• Run the script as Administrator

📂 Files Included

• firewall_rule_manager.py → Main source code

🚀 Usage

1. Clone the repository:

   https://github.com/Nancy59/real-time-ip-blocker-windows.git

2. Navigate to the project folder:

   cd real-time-ip-blocker-windows

3. Run the script as Administrator:

   python firewall_rule_manager.py

⚠ Note: Always run this tool with Admin privileges or you'll get permission errors.

📌 Disclaimer

This tool is intended for educational and research purposes only.

• Always use with caution on your personal system.
• Do not use this tool in any production, enterprise, or unauthorized network environment.
• Modifying firewall rules may disrupt network connectivity or other applications.
• The author is not responsible for any damage, data loss, or network outages caused by improper usage of this tool.
• Use only on systems where you have full permission to modify firewall settings.

🙏 Note

This project is developed as part of my learning journey in cybersecurity and network security.
If you find any bugs, issues, or have suggestions for improvement — feel free to open an issue or submit a pull request.
I would greatly appreciate your feedback and contributions to help me improve the tool and my learning. 🚀