How to find out real ip if dual nginx proxy is installed?

Question

Nginx

A short and urgent question, there are two nginx in the local network, one main, looks at the Internet, a proxy is configured to the second nginx server, which is only accessible through the local network, and this second nginx also works as a proxy for the local(localhost'a) nextcloud, and now actually the question is how to find out the real ip address that gets access from the internet, adding "proxy_set_header X-Real-IP $remote_addr;" in the configuration of two nginx, does not help, nextcloud still thinks that the first nginx connects to it

Answer 1

Throw from the first nginx X-Real-IPto the X-Real-IPsecond, in the second - X-Real-IPto remote_addr.