AWS WAF Rules
AWS WAF Rules are configurable conditions and actions within AWS Web Application Firewall (WAF) that protect web applications from common exploits and bots. They allow developers to define criteria (e.g., IP addresses, HTTP headers, or URI strings) to block, allow, or count web requests, helping secure applications against threats like SQL injection and cross-site scripting (XSS). These rules can be managed through the AWS Management Console, CLI, or APIs, and are applied to resources like CloudFront distributions, Application Load Balancers, or API Gateway APIs.
Developers should learn AWS WAF Rules when building or maintaining web applications on AWS to enhance security by mitigating OWASP Top 10 vulnerabilities and reducing the risk of DDoS attacks. They are essential for compliance requirements (e.g., PCI DSS) and for customizing protection based on application-specific needs, such as blocking malicious traffic from certain regions or filtering out bad bots. Use cases include e-commerce sites, APIs, and any public-facing web service that requires granular control over incoming traffic.