I upgrade AD from 2003 to 2008 R2. Everything went OK but since lots devices and servers are still pointing to 2003 server as DNS server, can I install DNS on 2003 server back? because when I demote windows 2003 server, it removed DNS, too with AD. I would like to put DNS back so meantime there is no downtime untill they change DNS server on the devices and servers.
Thanks in advance