Internal DNS record resolves to a weird public IP address
Posted on 2014-01-10
I have a weird problem that occurred to my client's network all of a sudden only in certain clients!
The internal DNS has 2 forward look up zone with two different domain name (Domain A) and (Domain B).
DNS Forward 1 points to Domain A, DNS Foward 2 points to Domain B. I have exchange server in Domain B.
I configured webmail on domain A (Public Domain) to point to Exchange server in Domain B.
however when I try to resolve the webmail.domaina.com it will resolve to a totally different public IP address
I tried resolving the public domain address in the external network and it resolves correctly to the configured public IP Address in our public DNS.
The problem just happens inside of the network. I tried changing some clients's DNS to google's dns 220.127.116.11 but the same thing happens.
I tried disabling internet on the DNS Server so no resolving request goes outside but still the same problem happens.
I would so much appreciate any help as I have never experienced this problem before.