🔐 SecureNetX Firewall Manager

SecureNetX is a modern, JavaFX-based Linux firewall manager that provides a user-friendly GUI to control iptables rules, block/unblock IPs, and monitor real-time network services.
Ideal for cybersecurity learners, system administrators, or anyone who wants a graphical way to control Linux firewalls.

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✨ Features

• 📡 Service Scanner
  Lists all currently active TCP/UDP services with IP, port, and process name using ss -tulnp.

• 🔥 Firewall Rule Management

  • Add or remove rules using protocol, IP address, port, and action (ACCEPT / DROP).
  • Logs feedback and errors in real time.
  • Extensible to support INPUT / OUTPUT direction (currently INPUT by default).

• 🚫 Block/Unblock IPs
  Block or unblock any external IP using iptables -A OUTPUT -d IP -j DROP (and delete to unblock).

• 📋 Live Logging
  Real-time visual log inside the application, showing rule actions, scanned services, IP blocks, and more.

• ❌ Exit Button
  Gracefully close the application with one click.

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🧪 Testing Example: Block Facebook

A great way to test the app is by blocking a known public IP like Facebook.

🔎 Steps:

1. Use nslookup or ping to find Facebook’s public IP:

   nslookup facebook.com
   

Example IP: 157.240.1.35

Enter 157.240.1.35 into the “Block IP” field in the app and click Block IP.

Test the block:

ping 157.240.1.35         # Should fail
curl https://facebook.com # May time out

Click Unblock IP to reverse it.

⚠️ Note: Facebook uses many dynamic IPs and CDNs. Blocking one IP may not fully block the website.

🧰 Requirements

Java 17+

JavaFX SDK (e.g., javafx-sdk-21)

Linux OS with:

    iptables

    ss command

Run with sudo/root to allow iptables modifications

🚀 Getting Started

1. Clone the Repository

git clone https://github.com/blackXmask/SecureNetX.git cd SecureNetX-Firewall

2. Compile & Run (Manual)

javac --module-path /path/to/javafx/lib --add-modules javafx.controls,javafx.fxml application/*.java sudo java --module-path /path/to/javafx/lib --add-modules javafx.controls,javafx.fxml application.Main

🛑 Important: Always run with sudo so the application can apply firewall rules.

3. Open in IDE

   Open the project in Eclipse / IntelliJ.

   Set VM Options to include JavaFX:

   --module-path /path/to/javafx/lib --add-modules javafx.controls,javafx.fxml

⚠️ Disclaimer

This tool uses and modifies iptables firewall rules. Misuse may result in loss of network access. Use responsibly and preferably in a controlled/test environment before applying to production systems.

📄 License

MIT License © 2025 blackXmask Feel free to modify, contribute, or share under the terms of the license.

Let me know if you'd like:

• .jar build instructions
• .deb package guide for Debian-based systems
• or README in another language (e.g., Urdu, Spanish)