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#Set pdc to ntp pool update
#Set pdc to ntp pool windows

The post Configure NTP Time Sync using Group Policy appeared first on TheITBros.The second way is to edit the registry inside the guest virtual machine with ADDS role.

#Set pdc to ntp pool update

Update group policy settings on the clients and check received time synchronization settings as described above.

#Set pdc to ntp pool windows

In the GPO Editor go to Computer Configuration -> Administrative Templates -> System -> Windows Time Service -> Time Providers and enable policy Configure Windows NTP Client.Īs an NTP server specify the name or IP address of the PDC: ,0x9 To do this, create a new GPO and assign it to the OU with computers. Typically, this behavior does not need to be reconfigured, however, if there are problems with time sync on domain clients, you can try to specify time server directly on clients using GPO. Net stop w32tim Configure Client Time Sync Settingsīy default in Active Directory domain environment clients synchronize their time with domain controllers (option Nt5DS - synchronize time to domain hierarchy). If something does not work, try restarting the Windows Time service and clear its configuration net stop w32time Manually start time synchronization: w32tm /resyncĪnd check the current NTP settings: w32tm /query /status It remains to update the policy on PDC: gpupdate /force You can locate current PDC server using command: netdom query fsmo

Do not forget to configure firewall properly and allow PDC access to external NTP servers over NTP protocol (UDP port 123).Īssign a WMI filter Filter PDC Emulator that you created earlier to the GPO.

Specify following settings in Configure Windows NTP Client policy: Configure Windows NTP Client: Enabled (policy settings are described below).We are interested in the following policies: Go to following section of Group Policy Editor Console: Computer Configuration->Administrative Templates->System->Windows Time Service->Time Providers Select created GPO and switch to the Edit mode. To do this, using Group Policy Management Console (GPMC.msc) select WMI Filters section and create new WMI filter with name Filter PDC Emulator and query Select * from Win32_ComputerSystem where DomainRole = 5.Ĭreate new GPO and link it to the OU named Domain Controllers. PDC Emulator role can be moved between domain controllers, so we need to make sure that GPO applied only to the current holder of Primary Domain Controller role.

Create a GPO for the domain controller with PDC roleĪt this step you need to configure your domain controller with the role of PDC Emulator to synchronize with an external source.

In our example we use : 0.us., 1.us., 2.us. and 3.us.Ĭonfiguring domain time synchronization using Group Policy consists of 2 steps: The list of public NTP atomic clock servers are available at. If you are facing with a problem when time on clients and domain controllers is different, most likely your domain have a problem with time synchronization and then this article can be very useful for you.įirst of all it is necessary to select an NTP server that you want to use. Please note that by default time is provided to clients using Windows Time service (instead of native NTP). The external time source is usually one or more NTP servers, like or NTP-server of your provider. PDC Emulator (Primary Domain Controller) synchronize time with an external time source. In properly configured AD environment Time service operates as follows: users computers receive the exact time from nearest domain controller which they are registered, all domain controllers request time from single DC with FSMO role « PDC Emulator». The Windows Time service (despite its apparent simplicity) is the basis for the normal functioning of Active Directory domain.