CloudflareCDN+nginx配置特定IP访问限制

Linux, Nginx /2022年8月13日 /zjs/ 0

Cloudflare公开中国节点IP段
https://www.cloudflare.com/zh-cn/ips/

# 获取CF代理IP
# 配置加入nginx Server前
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;

real_ip_header CF-Connecting-IP;

map $HTTP_CF_CONNECTING_IP  $cfIp {
~^(?P<firstaddr>[0-9.]+),?.*$    $firstAddr;
}</firstaddr>

map $cfIp $allowIp {
default 0;
# 白名单ip
"xx.xx.xx.xx" 1;
"xx.xx.xx.xx" 1;
}

#拦截非CF的ip
# 加入nginx配置Server内
if ($allowIp = 0) {
return 403;
}

Cloudflare ip段需要自己定期更新维护

cdn, cloudflare

zjs