X-Forwarded-For
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The X-Forwarded-For (XFF) HTTP header field is a common method for identifying the originating IP address of a client connecting to a web server through an HTTP proxy or load balancer.
~4 min read
Article
6 sectionsContents
- Format
- Usage
- Alternatives and variations
- See also
- References
- External links
The X-Forwarded-For (XFF) HTTP header field is a common method for identifying the originating IP address of a client connecting to a web server through an HTTP proxy or load balancer.
The X-Forwarded-For HTTP request header was introduced by the Squid caching proxy server's developers.
Connections
list of HTTP status codes
Entity
Request for Comments
Entity
email
Entity
IP address
Entity
digital object identifier
Entity
HTTP
Entity
web server
Entity
HTTPS
Entity
HTTP cookie
Concept
Simple Mail Transfer Protocol
Entity
proxy server
Entity
HTTP 404
Entity
Internet Engineering Task Force
Entity
Squid
Entity
load balancing
Entity
privacy mode
Entity
Internet privacy
Entity
403 Forbidden
Entity
reverse proxy
Entity
451 Unavailable For Legal Reasons
Entity