I have a site, www.example.com hosted with a company. I have created a subdomain, sub.example.com and would like it to point to a different server. I have the required ports forwarded for server access, although I am unsure how to set up what I want. I believe it is something to do with the subdomains DNS needs to point to my other IP addressbut I do not have a static IP, merely a DynDNS domain.
The questions are:
If I point my subdomains DNS to my ISP's DNS will my non-static IP stay the same as long as I am connected to the internet?
Is it possible to use the sub.example.com to directly access the server, rather than forward to the DynDNS-assigned domain?