First sign up for a no-ip account in http://www.noip.com/ and create a hostname for your Raspberry Pi.
In your Raspberry Pi download the Linux client from http://www.noip.com/download?page=linux, uncompress, compile and install it:
wget http://www.noip.com/client/linux/noip-duc-linux.tar.gz tar xzvpf noip-duc-linux.tar.gz cd `find . -name "noip-[0-9]*"` make sudo make install
Once the client is installed it’s time to configure it by running this command:
sudo /usr/local/bin/noip2 -C
It will ask for your internet interface, login/email of your account at noip.com, your password, the domain you want to configure (if you only have one the client will take it by default) and the update interval (which you should leave it to 30). Now that the client is configured you can run it this way:
sudo /usr/local/bin/noip2
DNS records don’t work right away because they need some time to propagate, so you’ll have to wait a little bit. You can check if it works using the ping command:
ping your-domain.no-ip.org PING your-domain.no-ip.org (W.X.Y.Z) 56(84) bytes of data. 64 bytes from Z.W-X-Y.blabla.com (W.X.Y.Z): icmp_req=1 ttl=64 time=0.203 ms
If you want to run the client at boot time (which you’ll probably want…) create an init.d script file in /etc/init.d/noip2 with this content:
#! /bin/sh
### BEGIN INIT INFO
# Provides: noip2
# Required-Start: $syslog
# Required-Stop: $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: noip.com client service
### END INIT INFO
# . /lib/lsb/init-functions
case "$1" in
start)
echo "Starting noip2."
/usr/local/bin/noip2
;;
stop)
echo "Shutting down noip2."
killall noip2
#killproc /usr/local/bin/noip2
;;
*)
echo "Usage: $0 {start|stop}"
exit 1
esac
exit 0
Then give it executable permissions and update the rc.d scripts:
sudo chmod +x /etc/init.d/noip2 sudo update-rc.d noip2 defaults
Now you can reboot your Raspberry Pi and it will automatically update it’s ip at noip on boot.
Ref: http://www.noip.com/support/knowledgebase/installing-the-linux-dynamic-update-client/
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