What is a WAF (Web Application Firewall)?
A Web Application Firewall (WAF) is a security system designed to monitor and filter HTTP traffic between a web application and the internet. It is primarily used to protect web applications from various types of attacks, such as SQL injection, cross-site scripting (XSS), and file inclusion attacks.
WAFs work by analyzing incoming traffic and blocking malicious requests before they reach the web application, thus preventing potential attacks. They act as a barrier between the internet and your application, ensuring that only legitimate traffic is allowed through while malicious attempts are blocked.