The server I'm hosting a few of my Matomo instances on has recently adopted a security measure for preventing bruteforce attacks.

The hosting provider staff says that part of this entails PHP variables such as $_SERVER['REMOTE_ADDR'] will return the local machine external address instead of the visitor's. As a result all the visitors in my Matomo history appear to come from the same city as the server location. Regardless what city, region or nation they visit from.

$_SERVER["HTTP_X_REAL_IP"] is the actual variable to be used on those machines, otherwise a migration to a less secure server will be necessary.

I haven't found a way to address this problem through the config file, in the docs I've only found information as for logging the real IP address when behing a proxy, which isn't my case. Is there any way to set which variable should be called for the IP address value provided by PHP?