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WAF

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WAF


A web application firewall (WAF) is an application firewall for HTTP applications. It applies a set of rules to an HTTP conversation. Generally, these rules cover common attacks such as cross-site scripting (XSS) and SQL injection. While proxies generally protect clients, WAFs protect servers. A WAF is deployed to protect a specific web application or set of web applications. A WAF can be considered a reverse proxy. WAFs may come in the form of an appliance, server plugin, or filter, and may be customized to an application. The effort to perform this customization can be significant and needs to be maintained as the application is modified.

AWS WAF - Web Application Firewall :
AWS WAF is a web application firewall that helps protect your web applications from common web exploits that could affect application availability, compromise security, or consume excessive resources. AWS WAF gives you control over which traffic to allow or block to your web applications by defining customizable web security rules. You can use AWS WAF to create custom rules that block common attack patterns, such as SQL injection or cross-site scripting, and rules that are designed for your specific application. New rules can be deployed within minutes, letting you respond quickly to changing traffic patterns. Also, AWS WAF includes a full-featured API that you can use to automate the creation, deployment, and maintenance of web security rules. With AWS WAF you pay only for what you use. AWS WAF pricing is based on how many rules you deploy and how many web requests your web application receives. There are no upfront commitments. You can deploy AWS WAF on either Amazon CloudFront as part of your CDN solution or the Application Load Balancer (ALB) that fronts your web servers or origin servers running on EC2.

Benefits :
Increased Protection Against Web Attacks
Security Integrated with How You Develop Applications
Ease of Deployment & Maintenance
Improved Web Traffic Visibility
Cost Effective Web Application Protection