如何在Cloudflare / Docker / NGINX / LAMP站点中阻止客户端IP地址丢失？

Question

问题是我的以下网站结构中没有设置PHP字段location / { proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_set_header X-NginX-Proxy true; proxy_pass http://172.24.0.3; } ，我应该如何更正？

Docker网桥上的静态IP容器（位于cloudflare后面的主机上）名为＆＃39; back＆＃39;：

1. NGINX在容器中运行（172.24.02）
2. 容器中的Apache + PHP（172.24.0.3）

nginx.conf：

<?php

echo('HTTP_CLIENT_IP: '.$_SERVER['HTTP_CLIENT_IP']);
echo('<br>HTTP_X_FORWARDE‌​D_FOR'.$_SERVER['HTTP_X_FORWARDE‌​D_FOR']);
echo('<br>REMOTE_ADDR'.$_SERVER['REMOTE_ADDR']);
echo('<br>HTTP_X_FORWARDED'.$_SERVER['HTTP_X_FORWARDED']);
echo('<br>HTTP_FORWARDED'.$_SERVER['HTTP_FORWARDED']);
echo('<br>HTTP_FORWARDED_FOR'.$_SERVER['HTTP_FORWARDED_FOR']);

?>

test.php的

HTTP_CLIENT_IP: 
HTTP_X_FORWARDE‌​D_FOR: 
REMOTE_ADDR: 172.24.0.2
HTTP_X_FORWARDED: 
HTTP_FORWARDED: 
HTTP_FORWARDED_FOR:

运行上述产量：

{{1}}

Answer 1

感谢@Devon提出打印$ _SERVER变量的建议，结果显示以下字段中包含客户端IP：

$_SERVER['HTTP_CF_CONNECTING_IP']
$_SERVER['HTTP_X_FORWARDED_FOR']

第一个给了client IP，第二个给了client IP, cloudflare IP