We have a domain setup here, where the domain controller provides DHCP/DNS/Active Directory services. All the client terminals have the domain controller in their DNS settings (Network Settings).
One of our mail servers went down, and we moved it's location. So, current CNAMES/DNS resolution is not fully transferred, however clients need access to their emails while I wait for transition.
So, I thought I would modify the hosts file on the domain controller to have an entry like: 200.234.342.343 mail.somedomain.net. It works great when I ping mail.somedomain.net from the domain controller itself, but client terminal doesn't resolve and try to go to the old IP. I've already flushed dns on domain controller and client terminal, so I'm unsure of what to do at this point. ANy clues? We're using Win Serv 2008 R2.