获取访客真实IP

在lnmp安装目录/root/lnmp下找到lnmp.conf并编辑Nginx_Modules_Options

Nginx_Modules_Options='--with-http_realip_module'

保存后执行./upgrade.sh nginx升级下Nginx。
找到网站配置文件，即/usr/local/nginx/conf/vhost/xx.com.conf并编辑。在任意一个location里加入以下参数：

set_real_ip_from 添加CDN IP段

    set_real_ip_from 0.0.0.0/0;
    real_ip_header X-Forwarded-For;
    real_ip_recursive on;

CloudFlare IP段

#Cloudflare
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 104.16.0.0/13;
set_real_ip_from 104.24.0.0/14;
set_real_ip_from 172.64.0.0/13;
set_real_ip_from 131.0.72.0/22;
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;
set_real_ip_from 2a06:98c0::/29;
set_real_ip_from 2c0f:f248::/32;

# use any of the following two
#real_ip_header CF-Connecting-IP;
real_ip_header X-Forwarded-For;
real_ip_recursive on;

编辑伪静态文件直接插入自动引用到所有vhost config上

/usr/local/nginx/conf/rewrite/none.conf

反向代理配置

  location / {
    proxy_pass http://127.0.0.1:3000;
    proxy_http_version  1.1;
    proxy_cache_bypass  $http_upgrade;

    proxy_set_header Upgrade           $http_upgrade;
    proxy_set_header Connection        "upgrade";
    proxy_set_header Host              $host;
    proxy_set_header X-Real-IP         $remote_addr;
    proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Forwarded-Host  $host;
    proxy_set_header X-Forwarded-Port  $server_port;
  }

关闭防跨站

sed -i 's/^fastcgi_param PHP_ADMIN_VALUE/#fastcgi_param PHP_ADMIN_VALUE/g' /usr/local/nginx/conf/fastcgi.conf

启用被禁用的函数

sed -i 's/,system//g' /usr/local/php/etc/php.ini
sed -i 's/,proc_open//g' /usr/local/php/etc/php.ini
sed -i 's/,proc_get_status//g' /usr/local/php/etc/php.ini

记录下LNMP环境下使用CDN后获取访客真实IP的方法