I am sharing this script I did to update my hosts on www.no-ip.com
install DNSUtil from my repos
echo "deb http://viewatbusiness.my.to:8080 wheezy-64k main sid jessie" > /etc/apt/sources.list
apt-get update
apt-get install dnsutils_9.9.5.dfsg-9_armhf.deb libbind9-90_9.9.5.dfsg-9_armhf.deb libdns100_9.9.5.dfsg-9_armhf.deb libisc95_9.9.5.dfsg-9_armhf.deb libisccfg90_9.9.5.dfsg-9_armhf.deb liblwres90_9.9.5.dfsg-9_armhf.deb bind9-host_9.9.5.dfsg-9_armhf.deb host_9.9.5.dfsg-9_all.deb libgeoip1_1.6.2-4_armhf.deb
mkdir -p /shares/scriptsmkdir -p /shares/logs
nano /shares/scripts/noip.sh
copy and past the following into noip.sh
* change USERNAME : PASSWORD with your noip username and password
* change HOSTNAME with the name of teh host you want to update or the group you want to update
PATH=/DataVolume/shares/logs:/DataVolume/shares/scripts:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
now="$(date)"
ip1="$(dig +short myip.opendns.com @resolver1.opendns.com)"
url="http://USERNAME:PASSWORD@dynupdate.noip.com/nic/update?hostname=HOSTNAME&myip="
currentip="$(dig +short HOSTNAME)"
if ["$currentip" == "$ip1"];then
echo "No update is needed" "$now" >> /shares/logs/noip.log
else
ipaddress="$ip1"
content="$url""$ipaddress"
echo "$content"
result="$(curl -s "$content")"
echo "$result" "$now" >> /shares/logs/noip.log
fi
Ctrl +x then Y - enter
chmod a+x /shares/scripts/noip.sh
now set the script to run every 30 Min to check if update is needed by crontab
crontab -e
add the following entry to crontab
30 * * * * sh /shares/scripts/noip.sh
* the script automatically chick if update is needed it send the update to no-ip if the ip-address has not change then it skip the update
full log can be found in /shares/logs/noip.log
