I’m about to migrate users and security groups from an existing Windows 2003 server to a new 2003 server. The existing DC is not using a qualified domain name, and I’m wondering if I should take the time now to create a new domain using a fully qualified Domain name. Are there any real benefits to using a qualified domain name on a DC? I am planning to add an Exchange server and a SharePoint server in the near future. I currently have 40 users in 5 countries but I expect that number to continue to grow. So, if I’m going to make the transition to another domain name now is the time to do it.