I've previously used a the hostname service with DynDNS because it was free. However now that I'm trying to add an bit of professionalism to my freelance work I want to use a custom domain. Right now I've just created a CNAME so that mycustomname.com references mydyndns.com. That way I'm still using the DynDNS service but the client or whoever is none the wiser. Why not just point mycustomname.com at my IP? Well the only reason I still need to use the DynDNS service is because my IP is dynamic and DynDNS allows my router (running Tomato firmware) to update DNS information with my current IP automatically so my hostname is always accurate. However I was wondering is there a way that I can just have my router update cPanel instead of DynDNS and I could use mycustomname.com exclusively and cut out the need for DynDNS?