We have some windows 2003 servers in DMZ .Inorder to enable time synchronization we need tomake one of teh DMZ servers as NTP server and other servers to synchronize with this server.The server to be set as NTP server and the clients are in different workgroups. The NTP server in DMZ will be made to synchronize with the domain controller in our internal network by creating a rule in firewall I tried uisng teh information available at http://support.microsoft.com/kb/816042but it was not very helpful.Is it because the servers are in different work groups? Can anyone guide me on how to proceed with the above task