Nemesida WAF Free
Community Edition is a dynamic module for NGINX and provides basic protection of a web application against attacks of the OWASP class based on signature analysis. Community Edition has its own signature database, detects attacks on web applications with a minimum number of false positives, is updated from the Linux repository, installs and configures in a few minutes.
Features of Community Edition:
Detailed information on setting up Community Edition is available on the official website.