HOST.com on one server and sub.HOST.com on another??
I dont know how or if this is possible. But i this this is possible. Lets say my site is HOST.com. I want HOST.com on a dedicated server but make a subdomain sub.HOST.com and have that on another dedicated server. I want this done because of SEO(search engin optimization) purpose.
I this ebaumsworld.com is doing this. His main domain ebaumsworld.com is on one server and i think forum.ebaumsworld.com is on another.
Point the A record for your subdomain to the seperate server and you can have it on any server you want.
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If your only purpose is for SEO, you do not need two dedicated servers although it's perfectly possible. I would rather get a new IP and assign it to the same server, and have one IP server host.com and the other serve up sub.host.com.