IP Blacklist for Fail2Ban

This repository maintains a curated list of malicious IP addresses to be used with Fail2Ban or other intrusion prevention tools. It helps automate the process of banning known bad actors from accessing your services.

📦 Features

• Regularly updated list of banned IP addresses
• Designed for easy integration with Fail2Ban, iptables, or firewalls
• Simple format for scripting and automation

📂 Repository Structure

ip-blacklist/

├── blacklist.txt # List of banned IPs (one per line)

├── README.md # Project documentation

⚙️ Usage

With Fail2Ban

You can include this blacklist as part of your Fail2Ban action configuration:

1. Append to iptables: ```bash while read ip; do iptables -A INPUT -s “$ip” -j DROP done < blacklist.txt

   Automate with a cron job:

   0 * * * * /path/to/update.sh && systemctl restart fail2ban

With Other Tools

The blacklist.txt file can be used by:

Nginx/Apache blocklists

Cloud firewall rules

Host-based intrusion detection systems

✍️ Contributing

If you have a list of malicious IPs or want to contribute improvements, feel free to open a pull request.

Please ensure the IPs are:

Confirmed malicious (e.g. botnets, brute force, spam)

Not dynamic or innocent sources (e.g. NAT-ed ISPs)

📜 License

MIT License. Use at your own risk — always audit IP lists before applying to production. 🙏 Acknowledgements

Thanks to the open-source security community and tools like Fail2Ban for making the internet safer.

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Let me know if you want a version that includes automation with APIs, third-party blacklists, or if it’s meant for a different use case.