Host a real domain Website from ADSL with Dynamic DNS

DynDNS.org Dynamic sub-domain, then it came CNAME host record, this worked. Why? Because CNAME is answered by the nameservers as an IP, and that you can the CNAME of the domain with FQDN (Fully Qualify Domain Name) of any other server. And that a sub-domain of DynDNS.org is FQDN, which will answer back with the Dynamic IP address of my ASDL line.