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Answer: How to setup SNTP time server on Windows server

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Date: 07 Nov 2006
Time: 11:31:48 -0500

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To configure Windows Time service to use an external SNTP time server, follow these steps: 1. Click Start, click Run, type regedit, and then click OK. 2. Follow these steps to change the server type to NTP: a. Locate and then click the following registry subkey: HKEY LOCAL MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters b. In the right pane, right-click TYPE, and then click Modify. c. In Edit Value, type NTP in the Value data box, and then click OK. 3. Follow these steps to configure the server as a reliable time source: a. In the right pane, right-click ReliableTimeSource, and then click Modify. b. In Edit DWORD Value, type 1 in the Value data box, and then click OK. 4. Follow these steps to configure the server LocalNTP to 1: a. In the right pane, right-click LocalNTP, and then click Modify. b. In Edit DWORD Value, type 1 in the Value data box, and then click OK. 5. Follow these steps to specify the time sources: a. In the right pane, right-click NtpServer, and then click Modify. b. In Edit Value, type Peers in the Value data box, and then click OK. Note Peers is a placeholder for a space-delimited list of peers from which your computer obtains time stamps. Each DNS name that is listed must be unique. 6. For Windows 2000 Service Pack 4 only, set the time correction setting. To do this, follow these steps: a. Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters b. In the right pane, right-click MaxAllowedClockErrInSecs, and then click Modify. c. In Edit DWORD Value, type TimeInSeconds in the Value data box, and then click OK. Note TimeInSeconds is a placeholder for the max number of seconds difference between the local clock and the time received from the NTP server in order to be considered a valid new time. 7. Follow these steps to set the poll interval: a. Locate and then click the following registry subkey: HKEY LOCAL MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters b. In the right pane, right-click Period, and then click Modify. c. In Edit DWORD Value, type 24 in the Value data box, and then click OK. 8. On the File menu, click Exit to exit Registry Editor. 9. At the command prompt, type the following command to restart the Windows Time service, and then press ENTER: net stop w32time && net start w32time 10. Run the following command on all the computers other than the Time Server to reset the local computer's time against the Time Server: w32tm -s


Last changed: 01/05/09
 

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