An HTTP firewall is designed to monitor and filter web traffic that passes through a network. It works by examining the HTTP requests and responses sent between a client and server, and then applying a set of pre-defined rules to determine if the traffic is legitimate or not.
The firewall can inspect different parts of the HTTP traffic, such as the headers, cookies, and content of requests and responses. Based on these inspections, the firewall can identify malicious code, suspicious patterns or behavior, and other types of threats.
To prevent these threats from reaching their intended target, the firewall can block, allow, or redirect the HTTP traffic. The firewall can also perform other actions, such as logging, alerting, or analyzing the traffic to gather insights into potential security risks.
Overall, an HTTP firewall provides a layer of protection for web applications and the network infrastructure they rely on. By filtering and monitoring web traffic, it can help prevent attacks such as SQL injection, cross-site scripting (XSS), and cross-site request forgery (CSRF).
