Setup ddclient + dynDNS

$ sudo apt-get install ddclient ssh libio-socket-ssl-perl

$ sudo gedit /etc/ddclient.conf
daemon=300
pid=/var/run/ddclient.pid
ssl=yes
protocol=dyndns2
use=web, web='http://checkip.dyndns.com/', web-skip='IP Address'
server=www.dyndns.com
login=********
password='******'
aquaballoon.dyndns.org

$ sudo gedit /etc/default/ddclient
run_ipup="false"
run_daemon="true"
daemon_interval="300"

$ sudo /etc/init.d/ddclient restart