Using CNAME for server alias’s may not work as expected

If you are decomissioning an old server and moving the data to a new server, an easy way to let all the hosts still connect to the old server is to create a cname alias in dns such that oldserver points to newserver.domain This way, any software coded to use unc names will still find the share but on the new server.
Unfortunately, by default the new server does not expect to get requests for the oldname so it ignores them and the client receives an error message. This is apparently fixed by following the instructions in KB281308.