Raspberry Pi 使用DDNS應用

至Gandi申請APIKEY
將下述程式碼存成bash script 並設定排程即可

#!/bin/sh
ip=$(/sbin/ifconfig ppp0 | grep 'inet' | cut -d: -f2 | awk '{ print $2}')
APIKEY="你Gandi的API KEY"
DOMAIN="你的domain"
HOST="你要更新的主機名稱,不含domain"
echo "pppoe IP: $ip"
lastip=$(cat /home/pi/lastip)
if [ -z $lastip ]
then
   lastip="0.0.0.0"
fi

if [ "$ip" != "$lastip" ]
then
curl -X PUT -H "Content-Type: application/json"\
     -H "X-Api-Key:$APIKEY"\
     -d '{"rrset_name":"'$HOST'",
        "rrset_type":"A",
	"rrset_ttl":300,
	"rrset_values": ["'$ip'"]}'\
	https://dns.api.gandi.net/api/v5/domains/$DOMAIN/records/$HOST/A
	echo "\n"
    
     echo $ip > /home/pi/lastip	
else
     echo "no change"

fi

English Version

Apply for an API KEY from Gandi
Save the following code as a bash script and set up a scheduled task (cron job)

#!/bin/sh
ip=$(/sbin/ifconfig ppp0 | grep 'inet' | cut -d: -f2 | awk '{ print $2}')
APIKEY="Your Gandi API KEY"
DOMAIN="Your domain"
HOST="The hostname to update, without the domain"
echo "pppoe IP: $ip"
lastip=$(cat /home/pi/lastip)
if [ -z $lastip ]
then
   lastip="0.0.0.0"
fi

if [ "$ip" != "$lastip" ]
then
curl -X PUT -H "Content-Type: application/json"\
     -H "X-Api-Key:$APIKEY"\
     -d '{"rrset_name":"'$HOST'",
        "rrset_type":"A",
	"rrset_ttl":300,
	"rrset_values": ["'$ip'"]}'\
	https://dns.api.gandi.net/api/v5/domains/$DOMAIN/records/$HOST/A
	echo "\n"
    
     echo $ip > /home/pi/lastip	
else
     echo "no change"

fi

日本語版

GandiでAPIKEYを申請する
以下のコードをbashスクリプトとして保存し、スケジュールタスク（cronジョブ）を設定する

#!/bin/sh
ip=$(/sbin/ifconfig ppp0 | grep 'inet' | cut -d: -f2 | awk '{ print $2}')
APIKEY="あなたのGandi API KEY"
DOMAIN="あなたのドメイン"
HOST="更新したいホスト名（ドメインを含まない）"
echo "pppoe IP: $ip"
lastip=$(cat /home/pi/lastip)
if [ -z $lastip ]
then
   lastip="0.0.0.0"
fi

if [ "$ip" != "$lastip" ]
then
curl -X PUT -H "Content-Type: application/json"\
     -H "X-Api-Key:$APIKEY"\
     -d '{"rrset_name":"'$HOST'",
        "rrset_type":"A",
	"rrset_ttl":300,
	"rrset_values": ["'$ip'"]}'\
	https://dns.api.gandi.net/api/v5/domains/$DOMAIN/records/$HOST/A
	echo "\n"
    
     echo $ip > /home/pi/lastip	
else
     echo "no change"

fi