How,Configure,NTP,Network,Time computer How to Configure an NTP Network Time Server in Windows 2003
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MicrosoftWindows 2003 has a time synchronisation utility built into the operatingsystemcalled Windows Time (w32time.exe)which can be configured to operate as a network timeserver. It can be configured to both synchronise a network using the internalclock or an external time source. Please note: Microsoftand others strongly recommend that you configure a time server with a hardwaresource rather than from the internet where there is no authentication. Forinformation on NTP time servers, receivers and other NTP products please click hereTo configure Windows Time service to use theinternal hardware clock, first check that w32time is located in the systemservices list in the registry, to check:Click Start, Run then type regedit then click ok.Locateand then click the following registry entry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32TimeIt is highly recommended that you back up theregistry as serious problems may occur if you modify the registry incorrectly,modifications to the registry are done at your own risk.To begin configuration for an internal clock, clickon the following subkey:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config\AnnounceFlagsIn the right pane, right-click AnnounceFlags, thenclick modify.In Edit DWORD Value, type A in the Value Data box,then click OKExit Registry EditorTo restart the Windows Time Service click Start, Run(or alternatively use the Command Prompt facility).Type: net stop w32time&& net start w32timeThen press enter.To configure the Windows Time service to use an externaltime source, click Start, Run and type regedit then click OK.Locate the following subkey:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters\TypeIn the right pane, right-click Type then clickModify, in edit Value type NTP in the Value data box then click OK. Locate the following subkey:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config\AnnounceFlags.In the right pane, right-click AnnounceFlags andclick Modify. The AnnounceFlags' registry entry indicateswhether the server is a trusted time reference, 5 indicates a trusted source soin the Edit DWORD Value box, under Value Data, type 5, then click OK.Network Time Protocol (NTP) is an Internet protocolused for the transfer of accurate time, providing time information along sothat a precise time can be obtainedTo enable the Network Time Protocol; NTPserver,locate and click:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpServer\Inthe right pane, right-click Enabled, then click Modify.Inthe Edit DWord Value box, type 1 under Value data, then click OK.Now go back and click on HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters\NtpServerInthe right pane, right-click NtpServer, then Modify, in the Edit DWORD Valueunder Value Data type In the right pane, right-click NtpServer, then Modify, inthe Edit DWORD Value under Value Data type the Domain Name System (DNS), each DNS must be unique and youmust append 0x1 to the end of each DNS name otherwise changes will not takeeffect.Nowclick Ok.Locate and click the followingHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpClient\SpecialPollIntervalInthe right pane, right-click SpecialPollInterval, then click Modify.Inthe Edit DWORD Value box, under Value Data, type the number of seconds you wantfor each poll, ie 900 will poll every 15 minutes, then click OK.Toconfigure the time correction settings, locate: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\config In the right pane, right-clickMaxPosPhaseCorrection, then Modify, in the Edit DWORD Value box, under Base,click Decimal, under Value Data, type a time in seconds such as 3600 (an hour)then click OK.Nowgo back and click:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\configInthe right pane, right-click MaxNegPhaseCorrection, then Modify.Inthe Edit DWORD box under base, click Decimal, under value data type the time inseconds you want to poll such as 3600 (polls in one hour)ExitRegistry EditorNow,to restart windows time service, click Start, Run (or alternatively use thecommand prompt facility) and type: netstop w32time && net start w32timeAnd thats it your time server should be now up andrunning.
How,Configure,NTP,Network,Time