Two servers, Two sites, Two IP Addresses

Hello,

I have seen a few threads related to this, but none that are close enough for me to get a workable solution from.

Here is my setup:

a.com - 1.1.1.1 - Hosted at bluehost, and with WildCard SSL Cert.
webnode.a.com - 1.1.1.2 - Hosted on a VPS, and with a copy of the a.com wildcard cert.
b.com - 1.1.1.3 - Hosted on webnode, with it's own wildcard cert.

By playing around in WHM and cPanel, I was able to set up "b.a.com" as an addon domain, belonging to the cPanel account of a.com, and I was even able to get it to pick up a.com's wildcard certificate (Had to override the IP in WHM and the A-Record at BlueHost, so they both point b.a.com to 1.1.1.2).

Due to the nature of the project, SSL is not optional, or else I would just set up a CNAME record for b.a.com and be on my merry way! I have also looked into UCC SAN Certificates, but I would like to avoid them if possible, since they do not allow for wildcard sans on the main domain.

However, Now when I visit b.a.com or https://b.a.com, I just get the Default Website Page. I have waited several hours and flushed my DNS Resolver cache, but to no avail. Is there a better/different way I should go about implementing this?

Thanks!

 

So, I figured out a solution of sorts. Not my favorite, but hey, it works!

1: Disregard any of the steps above. Don't add b.a.com to b.com's add on domains. However, do create a A-Record at a.com/cpanel that points to the IP address for webnode.a.com (NOT b.com!).
2: Add a cpanel account for "b.a.com", with the same IP as the webnode.
3: After that, in WHM, install the wildcard certificate for *.a.com on b.a.com, and then wait a bit for DNS to resolve, and you should be good to go!
To get the files the same, you will just have to set up a cron to rsync and chown the directories unfortunately.

 

Yes,

Since I don't have a SAN certificate, each one (a.com's and b.com's) certificates required a Dedicated IP address. WHM and cPanel would not let me assign a different IP address to an addon or subdomain.