家宽来源 → ohno.icu
机器是15号抽中的，20号正式开通
配置如下
ACA Residential NAT (墨西哥家宽) - Small $2.99 → $1.79 / Month
1 CPU vCore (Low Priority)
256 MB DDR4 RAM
2 GB NVME SSD
1024 GB Two-way Traffic
100Mbps Shared Bandwidth
20 * IPv4 Port
- 装完系统先进控制台添加一条A记录和txt记录
2.登录ssh
ssh root@添加的域名 -p 50140
3.安装不可描述脚本
curl -s https://raw.githubusercontent.com/233boy/sing-box/refs/heads/main/install.sh|bash
4.使用sed替换脚本生成的IP和端口
5.下载cf_ddns.sh脚本，使用sed替换信息
6.添加crontab 完事手工
echo '0 */12 * * * /bin/bash /root/.ssh/cf_ddns.sh' | crontab -
cat > /root/.ssh/cf_ddns.sh << 'EOF'
#!/bin/bash
auth_token=""
zone_id=""
record_name=""
ip=$(curl -s4 ip.sb) || exit 1
[ -z "$ip" ] && exit 1
auth=("-H" "Authorization: Bearer $auth_token" "-H" "Content-Type: application/json")
record=$(curl -s "https://api.cloudflare.com/client/v4/zones/$zone_id/dns_records?name=$record_name&type=A" "${auth[@]}")
[ -z "$record" ] && exit 1
if [[ "$record" == *'"count":0'* ]]; then
curl -s -X POST "https://api.cloudflare.com/client/v4/zones/$zone_id/dns_records" \
"${auth[@]}" --data "{\"type\":\"A\",\"name\":\"$record_name\",\"content\":\"$ip\",\"ttl\":120,\"proxied\":false}"
exit $?
fi
id=$(echo "$record" | sed -n 's/.*"id":"\([^"]*\)".*/\1/p')
old_ip=$(echo "$record" | sed -n 's/.*"content":"\([^"]*\)".*/\1/p')
[ "$ip" = "$old_ip" ] && exit 0
curl -s -X PUT "https://api.cloudflare.com/client/v4/zones/$zone_id/dns_records/$id" \
"${auth[@]}" --data "{\"type\":\"A\",\"name\":\"$record_name\",\"content\":\"$ip\",\"ttl\":120,\"proxied\":false}"
EOF
chmod +x /root/.ssh/cf_ddns.sh
(crontab -l 2>/dev/null; echo "0 */12 * * * /bin/bash /root/.ssh/cf_ddns.sh") | crontab -
