So how do you configured the external time sources on the PDC? Below is the command you would use or something like it. Type: NTP (Local) NtpServer: (Local)ĭllName: C:\Windows\System32\vmictimeprovider.dll (Local) C:\>w32tm /query /computer: /configuration You can see that the server is configured to get its time from external sources and the type is NTP. Below we are looking out our DC that happens to be the PDC. You can use the same command to look a remote computer. MaxPosPhaseCorrection: 4294967295 (Local)ĭllName: C:\Windows\system32\w32time.dll (Local)ĪllowNonstandardModeCombinations: 1 (Local) MaxNegPhaseCorrection: 4294967295 (Local) Since this device is domain joined, it’s using NT5DS. Now you can look to see how is the time getting synched, NTP or NT5DS. #LOOK AT LOCAL TIME CONFIGURATION TO FIND THE TYPE OF NTP BEING USED
On a computer, use the below command to see who it’s getting its time from. Primary Domain Controller (PDC) Emulator – 1 per domain I won’t go into each role but there are 5 FSMO roles. Next we’ll look at the Flexible Single Master Operation (FSMO) roles to find who that PDC server is. This PDC is usually synched to external time sources or like in some of my other environments, internal GPS NTP appliances. This server holds the best time source if another reliable time source hasn’t been configured.
SET PDC TO EXTERNAL TIME SOURCE WINDOWS
In a Windows forest, the Primary Domain Controller (PDC) emulator holds the master role. It’s a time service that synchronizes the entire domain hierarchy. Computers NOT joined to the DOMAIN will use NTP and Computer joined to the DOMAIN will use NT5DS, NOT NTP. NT5DS – Use on computers that are joined to a domain.
NTP – Use on computers that are not joined to a domain. But I want to focus on the Windows AD side now in this post.
I’ll blog soon about NTP in general when it comes to stratums and a design. Another topic that seems to confuse people when it’s a simple process.
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