Subdomain redirecting to another server

Question

I have a website hosted on a shared hosting plan. My domain name is registered at GoDaddy, and the nameservers are those of my shared hosting (so far, all normal).

But I'm trying to figure out how to add a subdomain and point it somewhere else. I would like to point sub.mydomain.com to some other IP (on Amazon AWS). I would like to have it behave like a normal domain, and not a simple header('Location: ...') or window.location.href.

Is this even possible? If so, how do I do?

Answer 1

Go to your GoDaddy Control Panel, click on edit and edit the DNS Zone File. Add an “A record” for the subdomain. There will be one existing with an @, that is for the main domain. It might look like this:

Host    Points To

@       <main domain IP address>

sub     <subdomain IP address>

Now, you will be able to access it like sub.domainname.com and also the main domain can be accessed just with domainname.com.