Description: X-Real-IP is an HTTP header used to identify the originating IP address of a client connecting to a web server. This header is particularly relevant in environments where proxies or load balancers are used, as it allows web servers to know the client’s real IP address instead of the proxy’s IP address that is mediating the connection. The inclusion of this header is crucial for implementing security measures, traffic analysis, and content personalization, as it provides accurate information about the user’s location and behavior. Additionally, X-Real-IP is a valuable tool for protection against DDoS attacks, as it enables system administrators to identify and filter malicious traffic based on the client’s original IP address. In summary, X-Real-IP is an essential component in the modern architecture of web applications, facilitating effective communication between clients and servers while maintaining data security and integrity.