How to use HTTP_X_FORWARDED_FOR properly?

Question

Alright, I have an small authentication issue. My web service allows to connect to my API over HTTP with a username and password, but this connection can also be restricted

Answer 1

You can also solve this problem via Apache configuration using mod_remoteip, by adding the following to a conf.d file:

RemoteIPHeader X-Forwarded-For
RemoteIPInternalProxy 172.16.0.0/12
LogFormat "%a %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined