windows 2008 internet time sync

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hello,

   i have a windows 2008 x64 server, primary active directory domain. internet time sync. not showing in time area, how setup server getting sync'd atomic clocks on internet every day. there else need eather in group policy make sure clients in sync windows 2008 server log in, used net time.... if recall has changed, heard user logs 2008 domain sync time without additional tasks , stations windows xp.

 

david

 

hi tdar,

 

1. on domain controller of root forest , may follow steps configure windows time service sync time authoritative time source.
 
a. open command prompt.
 
b. type following command display time difference between local computer , target computer, , press enter: (without quotation mark)

 

"w32tm /stripchart /computer: time.windows.com /samples:5 /dataonly”

 

please note:

 

the microsoft time server (time.windows.com) uses nist, national institute of standards , technology, located in boulder, colorado, external time provider. nist provides automated computer time service (acts), can set computer clock uncertainty of less 10 milliseconds. u.s. naval observatory (usno) time service department in washington, d.c., source accurate time synchronization in united states. many other sites exist throughout world can use time synchronization.
 
c. open udp port 123 outgoing traffic if needed.
 
d. open udp port 123 (or different port have selected) incoming ntp traffic.
 
e. type following command configure pdc emulator , press enter: (without quotation mark)

 

"w32tm /config /manualpeerlist: time.windows.com /syncfromflags:manual /reliable:yes /update"

 

2. computers joined domain configured synchronize manual time source. please use following procedure configure client computer synchronizing manually specified computer, automatically synchronize time domain hierarchy.

 

you may follow steps configure client computer automatic domain time synchronization
 
a. open command prompt.
 
b. type following command , press enter:

 

w32tm /config /syncfromflags: domhier /update
 
c. type following command , press enter:

 

net stop w32time
 
d. type following command , press enter:

 

net start w32time

 

you may use group policy make domain clients sync time pdc emulator in domain.

 

you may find group policy settings used configure w32time in group policy object editor snap-in in following locations:

configure global configuration settings here

computer configuration\policies\administrative templates\system\windows time service

 

configure windows ntp client settings here

computer configuration\administrative templates\system\windows time service\time providers

 

more reference:


how configure authoritative time server in windows server 2003
http://support.microsoft.com/kb/816042/en-us

 

windows time service best practices
http://technet2.microsoft.com/windowsserver/en/library/517e74d7-40e9-41bd-93aa-48b610b936321033.mspx?mfr=true

 

hope helps.



Windows Server  >  Windows Server General Forum



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