nginx.conf

worker_processes  2;
pid        /run/nginx.pid;

events {
    worker_connections  1024;
    use epoll;
}

http {
    include                 mime.types;
    default_type            application/octet-stream;
    sendfile                on;
    keepalive_timeout       65;
    gzip                    on;
    client_max_body_size    200M;
    client_body_buffer_size 128k;

    # Configure timeouts so that we stay connected even
    # under heavy load.  At all costs, avoid terminating
    # the connection and showing a generic 502 Bad Gateway
    # or 504 Gateway Timeout page to the visitor.
    proxy_connect_timeout   999999;
    proxy_read_timeout      999999;
    proxy_send_timeout      999999;
    fastcgi_connect_timeout 999999;
    fastcgi_read_timeout    999999;
    fastcgi_send_timeout    999999;

    # CloudFlare
    set_real_ip_from 199.27.128.0/21;
    set_real_ip_from 173.245.48.0/20;
    set_real_ip_from 103.21.244.0/22;
    set_real_ip_from 103.22.200.0/22;
    set_real_ip_from 103.31.4.0/22;
    set_real_ip_from 141.101.64.0/18;
    set_real_ip_from 108.162.192.0/18;
    set_real_ip_from 190.93.240.0/20;
    set_real_ip_from 188.114.96.0/20; 
    set_real_ip_from 197.234.240.0/22;
    set_real_ip_from 198.41.128.0/17;
    set_real_ip_from 162.158.0.0/15;
    set_real_ip_from 104.16.0.0/12;
    set_real_ip_from 172.64.0.0/13;
    set_real_ip_from 2400:cb00::/32;
    set_real_ip_from 2606:4700::/32;
    set_real_ip_from 2803:f800::/32;
    set_real_ip_from 2405:b500::/32;
    set_real_ip_from 2405:8100::/32;
    real_ip_header CF-Connecting-IP;

    include servers/*.conf;
}