Practical Guide to Dynamic IP Blocking in Nginx

Blocking IPs dynamically in Nginx can effectively protect websites or applications from malicious requests, crawlers, or DDoS attacks. Unlike the traditional static method that requires modifying the configuration file and reloading Nginx, dynamic IP blocking can automatically identify and block malicious IPs in real-time. This greatly enhances security and operational efficiency. The article elaborates on three mainstream solutions, providing practical configurations and application scenarios to facilitate quick implementation.