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Cloudflare DDNS shell script
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#!/bin/sh | |
EMAIL= | |
CF_API_KEY= | |
CF_ZONE_ID= | |
CF_DNS_ID= | |
DNS_RECORD= | |
RECORD_TYPE=AAAA | |
ROUTER_NETWORK_DEVICE= | |
# 获取当前 DNS 记录 | |
resolving_ip=$(curl -k -X GET "https://api.cloudflare.com/client/v4/zones/${CF_ZONE_ID}/dns_records/${CF_DNS_ID}" -H "X-Auth-Email:${EMAIL}" -H "X-Auth-Key:${CF_API_KEY}" -H "Content-Type: application/json" | awk -F '"' '{print $18}') | |
# 获取本机 ipv6 地址 | |
current_ip=$(ip -o -6 addr list $ROUTER_NETWORK_DEVICE | awk '{print $4}' | cut -d/ -f1 | head -n 1) | |
echo "当前解析 IP: $resolving_ip" | |
echo "当前本机 IP: $current_ip" | |
# 没有变化 | |
if [ $resolving_ip = $current_ip ]; | |
then | |
echo "IP 未变化" | |
# 修改 DNS 记录 | |
else | |
echo "更新解析记录" | |
curl -k -X PUT "https://api.cloudflare.com/client/v4/zones/${CF_ZONE_ID}/dns_records/${CF_DNS_ID}" -H "X-Auth-Email:${EMAIL}" -H "X-Auth-Key:${CF_API_KEY}" -H "Content-Type: application/json" --data '{"type":"'$RECORD_TYPE'","name":"'$DNS_RECORD'","content":"'$current_ip'"}' | |
fi | |
echo " " |
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