How to set an nginx rule for nextcloud so that you can see from which ip the request was made?

Question

Nginx

situation:
there is a separate nginx server on the proxmox server, there is a separate nextcloud server, in addition to it, five more nearby
80 and 443 ports are redirected to nginx through the router, and it already directs them to nextcloud , everything works good BUT,

nginx (.41 ip) sees that the user came from the nginx server, and not from an external ip, so if there are a lot of incorrect requests (which happened to me once), the server DDOS came out with incorrect logins / passwords

, how to "forward" the external ip to nextcloud through nginx?

Answer 1

ngx_http_realip_module
Parable IP can be obtained from X-Forwarded-For or from X-Real-IP if configured.
UPD
And it 's even easier .
Just add a titleX-Forwarded-For

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;