DDNS 腾讯云设置域名解析服务 域名绑定动态ip

北京联通宽带打电话跟联通申请了公网ip,想跟自己的域名进行绑定,但是公网ip在重新拨号后会变化,所以写了如下脚本自动更改公网ip

感谢dragon2k的博客,添加到crontab中即可

腾讯云DNS解析api地址 https://cloud.tencent.com/document/product/302/4032

#!/bin/bash
domain='你的域名，例如qq.com'
subDomain='你希望解析的子域名，例如www.qq.com，则只输入www,腾讯云域名解析列表中的主机记录'
sId='你的云API秘钥SecretId'
sKey='你的云API秘钥SecretKey'


function getId(){
	signatureMethod='HmacSHA1'
	timestamp=`date +%s`
	nonce=`head -200 /dev/urandom | cksum | cut -f2 -d" "`
	region=bj
	url="https://cns.api.qcloud.com/v2/index.php"
	#获取域名解析条目ID：recordId
	action='RecordList'
	recordType='A'
	src=`printf "GETcns.api.qcloud.com/v2/index.php?Action=%s&Nonce=%s&Region=%s&SecretId=%s&SignatureMethod=%s&Timestamp=%s&domain=%s&recordType=A&subDomain=%s" $action $nonce $region $sId $signatureMethod $timestamp $domain $subDomain`
	#echo 'src: ' $src
	signature=`echo -n $src|openssl dgst -sha1 -hmac $sKey -binary |base64`
	#echo 'signature: ' $signature
	params=`printf "Action=%s&domain=%s&Nonce=%s&Region=%s&SecretId=%s&Signature=%s&SignatureMethod=%s&Timestamp=%s&recordType=A&subDomain=%s" $action $domain $nonce $region $sId "$signature" $signatureMethod $timestamp $subDomain`
	#echo 'params: ' $params
	msg=`curl -G -d "$params" --data-urlencode "Signature=$signature" "$url"`
 
	#1:获取records数组
	#2:获取id
	#echo $msg|jq '.data.records[]'|grep -B 11 -A 3 'type\": \"A\"'|grep -A 6 -B 8 'name\": \"www\"'|jq .id
	#echo $msg|jq '.data.records[]'|grep -B 11 -A 4 'type\": \"A\"'|jq .id
	echo $msg|jq '.data.records[]'|jq .id
} 
#获取recordId
recordId=$(getId)
function updateMyDomainIP(){
	signatureMethod='HmacSHA1'
	timestamp=`date +%s`
	nonce=`head -200 /dev/urandom | cksum | cut -f2 -d" "`
	region=bj
	url="https://cns.api.qcloud.com/v2/index.php"
	#获取ip
	#ip=`curl http://2019.ip138.com/ic.asp >/dev/null|iconv -fgb2312 -t utf-8 |sed 's/.*\[\(.*\)\].*/\1/g'`
    #获取自己的公网ip
	ip=`curl https://api.myip.com|jq .ip|sed 's/\"//g'`
	action='RecordModify'
	recordType='A'
	recordLine='默认'
	value=$ip
	timestamp=`date +%s`
	nonce=`head -200 /dev/urandom | cksum | cut -f2 -d" "`
	src=`printf "GETcns.api.qcloud.com/v2/index.php?Action=%s&Nonce=%s&Region=%s&SecretId=%s&SignatureMethod=%s&Timestamp=%s&domain=%s&recordId=%s&recordLine=%s&recordType=%s&subDomain=%s&value=%s" $action $nonce $region $sId $signatureMethod $timestamp $domain $recordId $recordLine $recordType $subDomain $value`
	echo 'src: ' $src
	signature=`echo -n $src|openssl dgst -sha1 -hmac $sKey -binary |base64`
	#echo 'signature: ' $signature
	params=`printf "Action=%s&Nonce=%s&Region=%s&SecretId=%s&SignatureMethod=%s&Timestamp=%s&domain=%s&recordId=%s&recordLine=%s&recordType=%s&subDomain=%s&value=%s" $action $nonce $region $sId $signatureMethod $timestamp $domain $recordId $recordLine $recordType $subDomain $value`
 	echo 'params: ' $params
	curl -G -d "$params" --data-urlencode "Signature=$signature" "$url"
}
 
#执行
updateMyDomainIP