Glossary term
What is X-Forwarded-For? Meaning for developers
A request header where proxies add the original client IP, which clients can also fake.
Learn it properly · Networking for DevelopersLesson 6: Load Balancers, Proxies, CDNs and FirewallsLayer 4 and layer 7 balancing, reverse and forward proxies, CDNs, caching at the edge, and firewalls and security groups.