short name a domain name

I have a DDNS service with noip.com, but the link I have is so hard to remember. It's working, I can resolve it using resolveip link and I get the current IP of the router. I tried to use /etc/hosts but it didn't work, it requires that I put an IP. How can I give a short name to the DDSN link I have. for example ping name , so the system would resolve name for the DDNS link. I wonder if NetworkManager or ip addr can help me. Thanks a lot.