Why Choose This Project

In today’s cybersecurity landscape, organizations are constantly under threat from malicious IP addresses performing attacks like brute-force login attempts, DDoS, or network scans. Maintaining an up-to-date IP blocklist manually is time-consuming and error-prone. This project provides a real-time IP blocklist updater that automatically fetches, validates, and applies blocklists from trusted sources to secure servers and web applications, ensuring proactive protection against emerging threats.

What You Get

A web-based or server-integrated system that continuously updates IP blocklists from multiple sources, validates entries, and applies them to firewalls, web servers, or applications. Admins can monitor updates, add exceptions, and view reports of blocked IPs in real-time.

Key Features

Technology Stack

Frontend Layer

• HTML, CSS, JavaScript

• Bootstrap for responsive dashboard UI

• Optional: React.js for dynamic data visualization

Backend Layer

• Node.js (Express) / Java Spring Boot / Python Flask

• Handles fetching, validation, storage, and distribution of blocklists

Database Layer

• MongoDB / MySQL / PostgreSQL for storing IP entries, updates, and logs

Security Layer

• HTTPS for secure portal access

• JWT / OAuth2 for admin authentication and role-based access

Optional Libraries & APIs

• Threat Intelligence Feeds (AbuseIPDB, Spamhaus, etc.)

• Firewall APIs (iptables, AWS Security Groups, Cloudflare Firewall)

• Email/SMS APIs (Nodemailer, Twilio) for alerts

Working Flow

1. Blocklist Fetching

   • System retrieves IP lists from trusted external sources at defined intervals.

2. Validation & Filtering

   • Verify IPs are properly formatted and not in whitelist.

   • Remove duplicates or invalid entries.

3. Real-Time Application

   • Apply updated IP blocklists to firewalls, servers, or web applications automatically.

4. Logging & Alerts

   • Log all changes and send notifications for newly blocked or removed IPs.

5. Dashboard Visualization

   • Display blocked IP trends, recent updates, and alert history.

Main Modules

• Blocklist Fetch Module → Downloads IP lists from multiple sources

• Validation Module → Filters invalid or whitelisted IPs

• Distribution Module → Applies blocklist to servers, firewalls, or APIs

• Dashboard Module → Displays blocklist statistics and trends

• Alert Module → Sends real-time notifications to admins

• API Module → Provides access for other security systems to query the blocklist

Security Features

• Secure admin authentication with JWT/OAuth2

• HTTPS-secured portal and APIs

• Real-time detection and blocking of malicious IPs

• Audit logs for all automated and manual actions

• Role-based access for managing blocklists and exceptions

• Multi-source verification to prevent false positives