September 2003
Intermediate to advanced
624 pages
15h 49m
English
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3.13. Configuring a Domain Controller to Use an External Time Source
Problem
You want to set the reliable time source for a domain controller.
Solution
Using a command-line interface
Run the following commands from the command line on a domain controller:
> net time /setsntp:<TimeServerNameOrIP>
> net stop w32time
> net start w32timeUsing VBScript
' This codes configures a reliable time source on a domain controller ' ------ SCRIPT CONFIGURATION ------ strPDC = "<DomainControllerName>" ' e.g. dc01.rallencorp.com strTimeServer = "<TimeServerNameOrIP>" ' e.g. ntp01.rallencorp.com ' ------ END CONFIGURATION --------- strTimeServerReg = "SYSTEM\CurrentControlSet\Services\W32Time\Parameters" const HKLM = &H80000002 set objReg = GetObject("winmgmts:\\" & strPDC & "\root\default:StdRegProv") objReg.GetStringValue HKLM, strTimeServerReg, "ntpserver", strCurrentServer WScript.Echo "Current Value: " & strCurrentServer objReg.SetStringValue HKLM, strTimeServerReg, "ntpserver", strTimeServer objReg.SetStringValue HKLM, strTimeServerReg, "type", "NTP" strCurrentServer = "" objReg.GetStringValue HKLM, strTimeServerReg, "ntpserver", strCurrentServer WScript.Echo "New Value: " & strCurrentServer ' Restart Time Service set objService = GetObject("winmgmts://" & strPDC & _ "/root/cimv2:Win32_Service='W32Time'") WScript.Echo "Stopping " & objService.Name objService.StopService( ) Wscript.Sleep 2000 ' Sleep for 2 seconds to give service time to stop WScript.Echo "Starting " & objService.Name objService.StartService( ...
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