I just got my second dedicated server two days ago. I'm a little bit confused on how my second dedicated server was setup by my new provider. Its something like this.

my main domain.com was assigned to IP let say

The following was successfully registred as DNS host.
ns1.domain.com is assigned to
ns2.domain.com is assigned to

My main domain.com can be access both thru

meaning whenever I add a new domain I can access to both ips but the problem IP A is a little broken that Php shows error.

Is this a normal new server setup? I'm just asking though I already emailed them.