转载至：http://www.zhetenger.com/node/44
几个月前写过一个dnspod脚本，也是用来自动更新动态IP地址到DNSPOD解析顶级域名。周末闲着无聊，重新写了个脚本，在原来的基础上增加了一些功能，比如批量创建，批量更新，批量删除。脚本兼容支持centos, ubuntu这些使用bash的版本，也支持集成busybox的轻量发行版，如openwrt, ddwrt, tomato.但本人只在openwrt, centos和ubuntu上测试过。下面说下使用方法，首先你得有一个顶级域名并已转到dnspod解析，这步就省略了。
下载脚本
下载lino-dnspod或复制脚本内容到任意目录，保存为lino-dnspod, 推荐放在/usr/bin/下面，这样，直接输入文件名即可运行。复制粘贴时要注意dnspod的线路值“默认”，如果你的putty没有选择UTF-8，会导致粘贴后“默认”两字乱码。
配置帐号
打开脚本，填上你自己的dnspod帐号和密码以及要创建和更新的子域名，其它选项可可使用默认的。子域名用单个空格分开即可
email='admin@zhetenger.com' password='password' sub_domains='www ftp test'
创建域名和记录值
lino-dnspod -C zhetenger.com
把zhetenger.com换成你自己的域名，记住是不带www的主域名。如果已经创建过了就可以跳过这步
然后执行创建记录的命令lino-dnspod -c zhetenger.com &
成功创建域名记录后，脚本会在后台运行，每五分钟检测一次IP是否变化，有变化就更新，这样可减少对dnspod服务的请求次数。
启用随机运行
openwrt的用户可以把下面的脚本拷贝到/etc/init.d/下面，保存为dnspod,然后chmod 755 /etc/init.d/dnspod
#!/bin/sh /etc/rc.common
# Copyright (C) 2006-2011 OpenWrt.orgSTART=60start() {lino-dnspod -u zhetenger.com &
}stop() {killall lino-dnspod
}
然后，/etc/init.d/lino-dnspod enable
其它版本也可以按照此方法。
命令简介
创建域名命令lino-dnspod -C example.com
创建记录命令lino-dnspod -c example.com
删除记录命令lino-dnspod -r example.com
更新记录命令lino-dnspod -u example.com
#!/bin/sh
#written by benson huang
#admin@zhetenger.comcurl_status=`which curl 2>/dev/null`
[ -n "$curl_status" ] || { echo "curl is not installed";exit 3; }
#dnspod帐号名
email='admin@zhetenger.com'
#dnspod密码
password='xxxxxxx'
sub_domains='www ftp @'
API_url="https://dnsapi.cn"
pub_ip_addr=$(curl -s http://checkip.dyndns.com | sed -n 's/.*: \([0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\).*/\1/p')
format='json'
lang='en'
record_type='A'
offset="2"
length=""
os=$(uname -a | egrep -io 'openwrt' | tr [A-Z] [a-z])
shared_data="login_email=$email&login_password=$password&format=$format&lang=$lang&"
PROGRAM=$(basename $0)
#check for changed ip every 300 seconds
wait=300getJsonValue(){params="$1"echo $json_data | sed 's/\\\\\//\//g' | sed 's/[{}]//g;s/\(\[\|\]\)//g' |\awk -F ',' '{ for (i=1;i<=NF;i++) { print $i }}' |\sed 's/":/\|/g;s/"//g' |\awk -v k="$params" -F'|' '{ if ($(NF - 1) == k ) print $NF }'
}getDomainId() {local json_data=`curl -k -A 'xddns' $API_url/Domain.info -d ${shared_data}domain=$domainname`getJsonValue id}getRecordId() {for sub_domain in $sub_domains;dolocal json_datajson_data=$(curl -k -A 'xddns' $API_url/Record.List -d\ "${shared_data}record_type=$record_type&domain_id=$domain_id&sub_domain=${sub_domain}&offset=${offset}&length=${length}")#check if record type is NSIS_NS=$(getJsonValue type | grep -o 'NS' | head -n1)#if there are 3 @ subdomains, get the non-NS record id onlyif [ "$IS_NS" = "NS" ];thennumofline=$(getJsonValue id | sed '/^[0-9]\{7\}$/d' | wc -l)[ $numofline -eq 3 ] && tmp_result_id="$(getJsonValue id | sed '/^[0-9]\{7\}$/d' | head -n1 )" || continueelse tmp_result_id="$(getJsonValue id | sed '/^[0-9]\{7\}$/d')"fi #if result_id is not empty or unset, append a space to split record idresult_id="${result_id:+${result_id} }${tmp_result_id}"doneecho $result_idexit
}createDomain() {curl -k -A 'xddns' $API_url/Domain.Create -d ${shared_data}domain=$domainnameexit
}createRecord() {for sub_domain in $sub_domains;dolocal extra_data="&domain_id=$domain_id&sub_domain=$sub_domain&record_type=$record_type&record_line=默认&value=${pub_ip_addr}"curl -k -A 'xddns' $API_url/Record.Create -d $shared_data"$extra_data" done
}updateRecord() {local record_id_list=`getRecordId`tmp_sub_domains=${sub_domains}for record_id in $record_id_list;dosub_domain=$(echo $tmp_sub_domains | awk '{ print $1 }')tmp_sub_domains=${tmp_sub_domains#* }local extra_data="&domain_id=$domain_id&sub_domain=${sub_domain}\&record_type=${record_type}&record_line=默认&value=${pub_ip_addr}&record_id=$record_id"curl -k -A 'xddns' $API_url/Record.Modify -d $shared_data"$extra_data"done
}removeRecord(){read -p "list the subdomains to be deleted " subdomainsub_domains="$subdomain"for sub_domain in $sub_domains;dorecord_id=`getRecordId`local extra_data="&domain_id=$domain_id&record_id=$record_id"curl -k -A 'xddns' $API_url/Record.Remove -d $shared_data"$extra_data"doneexit}checkip() {oldip=$pub_ip_addrnewip=$(curl -s http://checkip.dyndns.com | sed -n 's/.*: \([0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\).*/\1/p')if [ "$newip" != "$oldip" ];thenoldip="$newip"return 8elsereturn 3fi
}if [ $# -ne 2 ];thenecho "usage:$PROGRAM |-c create record|-r remove records|-C create new domain|-m modify record | -bc create a batch of records DOMAIN [eg.example.com]"exit 3fi[ -n "$2" ] && domainname=$2domain_id=`getDomainId $domainname`case $1 in-c)createRecord $domainname;;-r)removeRecord $domainname;;-u)updateRecord $domainname;;-C)createDomain $domainname;;-i)getRecordId $domainname;;*) echo "no such option";exit 3;;esacwhile [ 1 ];docheckipif [ $? -eq 8 ];thenpub_ip_addr="$newip"updateRecordfisleep $waitdone