There are times when you want to move a share from one server to another and decommission the old server, but still want to use the old server unc.
Now the reality is that you should really bite the bullet and move your shares to DFS to avoid this mess, but anyhow…(actually you should setup the \\newserver\share as a \\dfs\share and then follow these instructions)
Assuming the old server has been removed
Add a CName in DNS to the
http://technet.microsoft.com/en-us/library/cc772053.aspx
Then add a SPN to reference the
setspn -a host/aliasname targetserver
setspn -a host/aliasname.contoso.com targetserver
In some cases (windows 2003 support)You may have to Disable Strict Name Checking
http://support.microsoft.com/kb/281308