NAXSI
NAXSI (Nginx Anti XSS & SQL Injection) is an open-source Web Application Firewall. In spite of any type of development language used, it prevents attackers from leveraging web vulnerabilities on any site. It provides good resilience against unknown attacks. NAXSI will be compatible with any nginx version and works better on NetBSD, FreeBSD, OpenBSD, Debian, Ubuntu and CentOS.
