Fail2Ban IP Management

Overview

This shell script is designed to manage banned IP addresses in Fail2Ban by monitoring the Fail2Ban log file and adding repeat offenders to a blacklist file (fail2many.txt). It ensures that only unique IP addresses are added to the blacklist to prevent duplicates.

Features

• Monitors the Fail2Ban log file for banned IP addresses.
• Maintains a blacklist file (fail2many.txt) containing banned IP addresses.
• Ensures only unique IP addresses are added to the blacklist.
• Provides easy integration with Fail2Ban for enhanced IP management.

Usage

1. Place the script (fail2many.sh) in a convenient location on your system.

2. Add a cron job to run the script regularly, e.g., once a day:

   0 0 * * * /path/to/fail2many.sh > /dev/null 2>&1

3. Ensure the script has executable permissions (chmod +x fail2many.sh).

4. Configure tcpwrappers to use the blacklist file (fail2many.txt) in the hosts.deny configuration.

ALL : /etc/fail2many.txt

License

This project is licensed under the MIT License.

Contributions

Contributions are welcome! Feel free to submit issues or pull requests to improve this script.