I have used a wget to get the latest versions from the no-ip.com site. I then had to type in my account details which went fine. I try to type in the address in a url outside my home and that url gives me nothing.
using the (sudo apt-get install no-ip) or (sudo apt-get install noip2) does not work in the newer Ubuntu OS. You will need to (sudo apt-get install ddclient) and configure the connection inside of that.