A web application firewall (WAF) is a security appliance or software that monitors and filters all traffic between the user and the web application. It is used to protect web products from known and unknown attacks, including session hijacking, parameter tampering, Cross-Site Scripting (XSS), SQL injection, and command injection.

A WAF can be either an appliance or a software program that resides on the web server or in front of it. The most common deployment is as a software program that resides on the web server. When deployed in this way, the WAF intercepts all requests from users before they reach the web application and analyzes them for malicious content. If malicious content is detected, the request is blocked and the user is notified.

The WAF can also be deployed as an appliance, usually within the network of the organization. The appliance intercepts all traffic between the user and the web application and examines it for malicious content before allowing it to pass through. In addition, the appliance can provide additional security measures such as rate limiting, intrusion detection, and DDoS protection.

Overall, a web application firewall can provide an additional layer of security for web applications and help protect them from malicious attacks. It is important to ensure that it is properly configured to maximize its effectiveness. Additionally, the WAF should be regularly monitored and updated with the latest security patches to remain secure.

Edgeport offers a cloud-based Global Enterprise WAF that is distributed across multiple regions, making it more secure and efficient for protecting your web products, since you don't need to manage or install any software to use it.

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