CentOS通过DNSpod实现动态域名

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CentOS通过DNSpod实现动态域名

科技小能手 2018-02-28 17:47:44 浏览4881
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因为家里使用ADSL动态IP上网,有时在外面需要使用家里资源,原本使用的是TP-LINK自带的花生壳解析,用过之后发现很不稳定。因为自己注册了域名也已使用了DNSPOD解析。

1.新建脚本文件

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vim ddns.sh

文件内容如下:

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#!/bin/sh
                                                                                                                                                                                                                                                                      
#################################################
# AnripDdns v3.08.09
# 基于DNSPod用户API实现的动态域名客户端
# 作者: 若海[mail@anrip.com]
# 介绍: http://www.anrip.com/ddnspod
# 时间: 2013-08-08 23:25:00
#################################################
                                                                                                                                                                                                                                                                      
# 全局变量表
arPass=arMail=""
                                                                                                                                                                                                                                                                      
# 获得外网地址
arIpAdress() {
    local inter="http://members.3322.org/dyndns/getip"
    wget --quiet --no-check-certificate --output-document=- $inter
}
                                                                                                                                                                                                                                                                      
# 查询域名地址
# 参数: 待查询域名
arNslookup() {
    local dnsvr="114.114.114.114"
    nslookup ${1} $dnsvr | tr -d '\n[:blank:]' sed 's/.\+1 \([0-9\.]\+\)/\1/'
}
                                                                                                                                                                                                                                                                      
# 读取接口数据
# 参数: 接口类型 待提交数据
arApiPost() {
    local agent="AnripDdns/3.08(mail@anrip.com)"
    local inter="https://dnsapi.cn/${1:?'Info.Version'}"
    local param="login_email=${arMail}&login_password=${arPass}&format=json&${2}"
    wget --quiet --no-check-certificate --output-document=- --user-agent=$agent --post-data $param $inter
}
                                                                                                                                                                                                                                                                      
# 更新记录信息
# 参数: 主域名 子域名
arDdnsUpdate() {
    local domainID recordID recordRS recordCD
    # 获得域名ID
    domainID=$(arApiPost "Domain.Info" "domain=${1}")
    domainID=$(echo $domainID | sed 's/.\+{"id":"\([0-9]\+\)".\+/\1/')
    # 获得记录ID
    recordID=$(arApiPost "Record.List" "domain_id=${domainID}&sub_domain=${2}")
    recordID=$(echo $recordID | sed 's/.\+\[{"id":"\([0-9]\+\)".\+/\1/')
    # 更新记录IP
    recordRS=$(arApiPost "Record.Ddns" "domain_id=${domainID}&record_id=${recordID}&sub_domain=${2}&record_line=默认")
    recordCD=$(echo $recordRS | sed 's/.\+{"code":"\([0-9]\+\)".\+/\1/')
    # 输出记录IP
    if "$recordCD" == "1" ]; then
        echo $recordRS | sed 's/.\+,"value":"\([0-9\.]\+\)".\+/\1/'
        return 1
    fi
    # 输出错误信息
    echo $recordRS | sed 's/.\+,"message":"\([^"]\+\)".\+/\1/'
}
# 动态检查更新
# 参数: 主域名 子域名
arDdnsCheck() {
    local postRS
    local hostIP=$(arIpAdress)
    local lastIP=$(arNslookup "${2}.${1}")
    echo "hostIP: ${hostIP}"
    echo "lastIP: ${lastIP}"
    if "$lastIP" != "$hostIP" ]; then
        postRS=$(arDdnsUpdate $1 $2)
        echo "postRS: ${postRS}"
        if [ $? -ne 1 ]; then
            return 0
        fi
    fi
    return 1
}
                                                                                                                                                                                                                                                                      
###################################################
                                                                                                                                                                                                                                                                      
# 设置用户参数
arMail="user@anrip.com"
arPass="anrip.net"
                                                                                                                                                                                                                                                                      
# 检查更新域名
arDdnsCheck "anrip.com" "lab"
arDdnsCheck "anrip.net" "lab"

ps:以上代码来自http://www.anrip.com/post/872

我们只需要将上面的

# 设置用户参数
arMail="user@anrip.com"     //DNSPOD用户名
arPass="anrip.net"                //DNSPOD密码
# 检查更新域名
arDdnsCheck"anrip.com"  "lab"     //需要更新的域名为anrip.com,主机为lab,就是lab.anrip.com
arDdnsCheck"anrip.net"  "lab"      //更新lab.anrip.net

修改成自己的信息即可


3.增加执行权限

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chmod +x /root/ddns.sh


4.加入任务计划(5分钟执行一次)

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echo "*/5  * * * * root /root/ddns.sh" >> /etc/crontab


计划任务执行情况可以查看/var/log/cron

说明:

如果在执行后发现

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[root@localhost ~]# ./ddns.sh
./ddns.sh: line 24: nslookupcommand not found
hostIP: 114.234.77.222
lastIP:
postRS: 114.234.77.222

如果你使用的是CentOS则执行

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yum -y install bind-utils

或者是ubuntu的话

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sudo apt-get install dnsutils



本文转自 rong341233 51CTO博客,原文链接:http://blog.51cto.com/fengwan/1404534

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