Fail2ban

Nginx and Fail2ban are complementary tools for mitigating DDoS attacks. Nginx rate limiting provides real-time protection by controlling the number of requests allowed from each client within a specific timeframe. Fail2ban enhances this by analyzing Nginx logs to identify and block client IP that is sending excessive number of requests, further strengthening the server's defenses against DDoS attacks. 

Fail2Ban can be easily installed and configured on Debian 12 to enhance your system security. This article provides a concise guide with ready-to-use commands help you get started with configuring Fail2Ban, managing Nginx logs, banning bad IPs to protect your Drupal site.