How to check whether it is a NTP server?
Is this server a domain controller or a standalone server (not part of a domain)? If the server is a domain controller, it is automatically the time server for the clients that used it to logon to the domain with. All DCs in a domain will look at the DC that holds the PDC Emulator role for time sync. If there are child domains, the child PDC Emulator will look to the parent domain’s PDC Emulator for time sync. The is called the time service hierarchy in aa AD domain. The top of the hierarch is the PDC Emulator at the forest root, which should be configured to get time sync wtih a reliable internet time source. BUT, there is really nothing to configure with all the DCs and client machines, other than configuring time source on the forest root’s PDC Emulator. It just works by DEFAULT, meaning out of the box. Read my blog on how time works in an AD domain with Window 2000, 2003 and 2008. Configuring the Windows Time Service for Windows Server http://msmvps.com/blogs/acefekay/arc…ws-serv
