if you have two proxy servers, very common, the X-Forwarded-For becomes
a comma separated list of IP addresses
Shankar Unni wrote:
Tim Funk wrote:
2) X-Forwarded-For (IIRC) can be multi-valued (comma seperated via
multiple proxies)
Plus, other load balancers seem to stick in other headers, too (e.g.
"X-Real-IP"). (These two seem to be the most popular).
It'll be an interesting job to figure out the "real" IP address if
your request goes through *two* proxy servers, and they each set a
different header..
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