dynv6免费二级域名自动更新IPv6地址的脚本

aming.ou

官方说明 https://dynv6.com/docs/apis

以下是我改进过的shell脚本，配置信息写入脚本
保存为dynv6.sh , 修改属于自己的www.dynv6.com上注册的二级域名，修改为自己的token，修改wget程序的路径，其他不变。
上传到/sbin/dynv6.sh ，修改文件权限 chmod 777 /sbin/dynv6.sh
crontab -e进入定时任务管理, 添加一条，每10分钟检查一次，发现IPv6地址变化后才更新
*/10 * * * * /sbin/dynv6.sh
------------------------------------------------------------
#!/bin/sh -e
source /etc/profile


hostname='ddns.dynv6.net'
token='jZsUe3pHmMvLsjdfdfdqc7JTXsxneR'
file=/tmp/.dynv6.addr6
fileerr=/tmp/.dynv6.addr6.log

[ -e $file ] && old=`cat $file`

if [ -z "$netmask" ]; then
  netmask=64
fi

unset $address
for ipline in `ip -6 addr list scope global | grep $netmask | grep -v " fd" | sed -n 's/.*inet6 \([0-9a-f:]\+\).*/\1/p'`; do
    unset $j
    j=`echo $ipline |grep -o "\:" |wc -l`
    if [ "$j" = "7" ];then
        echo $ipline, $j
        address=$ipline
    fi
done

if [ -e /usr/bin/wget ]; then
  bin="wget -q -O-"
else
  echo "neither curl nor wget found"
  exit 1
fi

if [ -z "$address" ]; then
  echo "$(date '+%Y-%m-%d %H:%M:%S') : no IPv6 address found"
  echo "$(date '+%Y-%m-%d %H:%M:%S') : no IPv6 address found" >> $fileerr
  exit 1
fi

unset $tmpstr
for ipline in `$bin http://ip.zxinc.org/getip`; do
  tmpstr=$ipline
  echo "Local address= $tmpstr"
done
if [ -z "$tmpstr" ]; then
  echo "$(date '+%Y-%m-%d %H:%M:%S') : The net is dead."
  echo "$(date '+%Y-%m-%d %H:%M:%S') : The net is dead." >> $fileerr
  exit 1
fi

# address with netmask
current=$address/$netmask
tmpstr=`ping -6 -c 1 ${hostname} | sed '1{s/[^(]*(//;s/).*//;q}'`
echo "oldIPv6= $tmpstr"
if [ "$old" = "$current" ] && [ "$tmpstr" = "$address" ]; then
  echo "IPv6 address unchanged: $current"
  echo "$(date '+%Y-%m-%d %H:%M:%S') : $current" >> $fileerr
  exit
fi
echo "$(date '+%Y-%m-%d %H:%M:%S') : $old -> $current" >> $fileerr

# send addresses to dynv6
$bin "http://dynv6.com/api/update?hostname=$hostname&ipv6=$current&token=$token"

# save current address
echo $current > $file



------------------------------------------------------------
windows的bat脚本和Linux的shell脚本

Shell更新230424


------------------------------------------------------------2023-04-24更新
IPv6地址分配规则，DHCPv6由服务器分配，是短地址格式，如果是SLAAC分配就是长地址格式，原检测代码是基于长地址编写，为了兼容2种方式，代码修改如下

#----------------Begin

#!/bin/sh -e
source /etc/profile

hostname='ddns.dynv6.net'
token='jZsUe3pHmMvLsjdfdfdqc7JTXsxneR'
file=/tmp/.dynv6.addr6
fileerr=/tmp/.dynv6.addr6.log

[ -e $file ] && old=`cat $file`

if [ -z "$hostname" -o -z "$token" ]; then
    echo "Usage: token=<your-authentication-token> [netmask=64] $0 your-name.dynv6.net [device]"
    exit 1
fi

unset $address
unset $add2ress
for ipline in `ip -6 addr list scope global | grep -v " fd" | sed -n 's/.*inet6 \([0-9a-f:]\+\).*/\1/p'`; do
    j=`echo $ipline |grep -o "\:" |wc -l`
    echo "$ipline , $j"
    if [ "$j" = "7" ];then
        address=$ipline
    else
        if [ "${ipline:0:1}" = "2" ];then
            add2ress=$ipline
        fi
    fi
done

if [ -e /usr/bin/wget ]; then
    bin="wget -q -O-"
else
    echo " wget not found"
    exit 1
fi

if [ -z "$address" ] && [ -z "$add2ress" ]; then
    echo "$(date '+%Y-%m-%d %H:%M:%S') : no IPv6 address found"
    echo "$(date '+%Y-%m-%d %H:%M:%S') : no IPv6 address found" >> $fileerr
    exit 1
elif [ -z "$address" ];then
    address=$add2ress
fi
echo "IfIPv6=  $address"

unset $tmpstr
for ipline in `$bin http://ip.zxinc.org/getip`; do
    tmpstr=$ipline
    echo "Local address= $tmpstr"
done
if [ -z "$tmpstr" ]; then               
    echo "$(date '+%Y-%m-%d %H:%M:%S') : The net is dead."
    echo "$(date '+%Y-%m-%d %H:%M:%S') : The net is dead." >> $fileerr
    exit 1                                                                 
fi

echo "host= $hostname"
if [ $old ]; then                                                
    echo "oldIPv6= $old"                                                                 
fi

# address with netmask
current=$address/$netmask
tmpstr=`ping -6 -c 1 ${hostname} | sed '1{s/[^(]*(//;s/).*//;q}'`
echo "dnsIPv6= $tmpstr"
if [ "$old" = "$current" ] && [ "$tmpstr" = "$address" ]; then
    echo "IPv6 address unchanged: $current"
    echo "$(date '+%Y-%m-%d %H:%M:%S') : $current" >> $fileerr
    exit
elif [ "$old" != "$current" ]; then
    echo "$(date '+%Y-%m-%d %H:%M:%S') : local= $old -> $current" >> $fileerr
else
    echo "$(date '+%Y-%m-%d %H:%M:%S') : dnsIP= $tmpstr -> $current" >> $fileerr
fi
# send addresses to dynv6
$bin "http://dynv6.com/api/update?hostname=$hostname&ipv6=$current&token=$token"
echo .
# save current address
echo $current > $file


#----------------End

karasfjm

感谢，正好需要这个

aming.ou

根据坛友反馈，以下这行代码可能因为接口不一样而无法获取IPv6地址，建议先打印 ip -6 addr list scope global 看看返回什么信息，再进行个性化修改
for ipline in `ip -6 addr list scope global | grep $netmask | grep -v " fd" | sed -n 's/.*inet6 \([0-9a-f:]\+\).*/\1/p'`; do

例如修改为:
for ipline in `ip -6 addr list scope global #接口名字# | grep -v " fd" | sed -n 's/.*inet6 \([0-9a-f:]\+\).*/\1/p'`; do

softpro

嘿嘿,这个可以有！！...

liaohcai

账号申请需要用邮箱认证，人机鉴别时需要用魔法上网

liaohcai

我前几天写了个在线一键脚本安装和自动配置，只要在计划任务中替换成域名和令牌就行了，适配了老毛子固件和OpenWrt固件！

gaomin1990

看看脚本怎么样

Sexit

感谢楼主分享

niuzhe

嘿嘿,这个可以有！

leckyfu

含着分析

fbt1234

fdfffffffffffd

a561300

看看有没有

aming.ou

liaohcai 发表于 2023-3-23 19:45
我前几天写了个在线一键脚本安装和自动配置，只要在计划任务中替换成域名和令牌就行了，适配了老毛子固件和 ...

在线安装，是不是要搭建服务器？还是用官方的脚本地址？

liaohcai

aming.ou 发表于 2023-3-27 23:24
在线安装，是不是要搭建服务器？还是用官方的脚本地址？

只是搭建一个储存脚本的文件服务器，这样就能省去很多步骤，更方便小白，是根据官方网站的API,自己编写的shell脚本，一键安装到路由器里，并自动配置到计划任务，最后在计划任务将里面的信息替换成自己的，保存！

liaohcai

https://www.right.com.cn/forum/thread-8278421-1-1.html