How To Host Sub-Domain On Different Hosting Account

How to hoste Sub-domain on Other hosting company:

In my case, I decided to host my forum on Bluehost hosting, and keep my main blog on WPEngine only. This way, I will avoid the huge charges of WPEngine (Their Billing plan works on number of visits), and this will make more sense in term of server load. Here is the exact steps I followed, and it will work with almost all the hosting and domain registrar.

In my scenario: My Domain is hosted on ShoutMyDomain and blog is hosted on WpEngine. And my goal was to host forum.shoutmeloud.com on Bluehost hosting.

Update A Record of Sub-domain and point it to other hosting:

This one step is the most crucial part of hosting your sub-domain on another hosting account. You need to go to your domain hosting server, and add A record for your sub-domain to point it to your new server.  Depending upon your domain registrar, all you need to do is edit the DNS Zone, and add A record. Here is how it looks for my domain at ShoutMyDomain:

I.P address will be of your new hosting sever I.P. If you want your sub-domain to be something like member.domain.com, in the host name part, replace forum with member.  Now, you have done the important part of mapping your A record to new hosting.

Assigning sub-domain to your Bluehost hosting:

Now, in this case my main domain is hosted on WPEngine, and I need to host sub-domain, and the process is going to be the same, like we add any new add-on domain to bluehost, and later use sub-domain feature to install anything we like.

• Login to your Bluehost account.
• Click on Domain manager, and select “Assign a new domain to your account”.
• Now, add the URL of the main domain (Ex: shoutmeloud.com)
• To verify the ownership of your domain, simply upload the test file to your server asked on the page, or use EPP code to verify domain ownership. Atleast on Bluehost hosting, EPP code is the fastest way to verify domain ownership.

• Once the domain is verified and assigned to your account, your next aim is to create a sub-domain where you want to install your forum or membership site.
• On bluehost hosting, click on domains at the top > Click sub-domains, and add the sub-domain name and select the domain. Click create (refer to screenshot)

That’s it, and now you can install forum or anything on your subdomain, which is hosted on another hosting.  

Sourced: http://www.shoutmeloud.com/how-to-host-sub-domain-different-hosting-account.html