使用Cloudflare時設定cloudflare的ip白名單在Nginx

vi /etc/nginx/conf.d/default.conf

# IPv4

allow 103.21.244.0/22;

allow 103.22.200.0/22;

allow 103.31.4.0/22;

allow 104.16.0.0/13;

allow 104.24.0.0/14;

allow 108.162.192.0/18;

allow 131.0.72.0/22;

allow 141.101.64.0/18;

allow 162.158.0.0/15;

allow 172.64.0.0/13;

allow 173.245.48.0/20;

allow 188.114.96.0/20;

allow 190.93.240.0/20;

allow 197.234.240.0/22;

allow 98.41.128.0/17;

# IPv6

allow 2400:cb00::/32;

allow 2606:4700::/32;

allow 2803:f800::/32;

allow 2405:b500::/32;

allow 2405:8100::/32;

allow 2a06:98c0::/29;

allow 2c0f:f248::/32;

deny all;

重新啟動 nginx