I have an existing network where DC is running on 2003 r2 (SERVER1) which hosts the DNS DHCP AD services on it. Also i have a DC running on 2008 R2(SERVER2) providing DNS role to clients. Idea is to get rid of the 2003 and put in a new 2012 DC. This 2003 DC has been in for a long time and the earlier admin in charge of running the company for 20 years decided to hardcode all custom in-house programs to the 2003 DC shared folders (all programs refer to the DC netbios server name SERVER1). The programmers have all since retired and we have decided to hire in more people to be able to modify these programs. I am sensing DC 2003 server is running on its last legs and need a replacement asap. But i would want all the programs (shared folders) to be transferred to the new 2012 R2 server(SERVER3) in working condition(since these programs refer to the netbios name SERVER1)
1. With the current setup introduce server 2012 as a member server. Call it Server 3
2. Promote server 2012 as DC. Transfer all roles from 2003 to 2012
3. Copy the shared folder where all the programs are referencing onto Server 3
4. Create a CNAME record in server 2012 and point it to server 2012, so all request to Server 1 are now being redirected to Server 3
5. Demote Server 2003 from domain
6. Decommission Server 1 from the company.
I am thinking of something using CNAME/ multiple A record or DNS forwarders – whichever works. Is there a suggested way for this issue