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NTP SERVER

Posted on 2009-06-30
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Last Modified: 2012-05-07
how do i point a windows 2003 server to an ntp server
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Question by:collazo2
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by:oBdA
oBdA earned 325 total points
ID: 24746650
Open a command prompt on the PDC emulator, enter

w32tm /config /manualpeerlist:1.2.3.4,0x8 /update
w32tm /resync

Time servers are here (I wouldn't use the default "time.windows.com"; I've found it to be unreliable); pick a time server geographically close to you, for example one of these:

A list of the Simple Network Time Protocol (SNTP) time servers that are available on the Internet
http://support.microsoft.com/kb/262680

The pool.ntp.org project
http://www.pool.ntp.org/
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oBdA earned 325 total points
ID: 24746680
Oh, if that is a stand-alone server in a workgroup, the command stays the same.
In an AD domain, you only need to configure the PDCe, DCs will sync with the PDCe, members will sync with the DC authenticating them.
And just in case you have a very restricitive firewall: UDP port 123 outbound to the time server needs to be allowed.
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by:rjwesley
rjwesley earned 175 total points
ID: 24746891
net time /setsntp:time-a.nist.gov (example - choose closer if required from link - can use multiple servers as well)

Then restart w32tm using

net stop w32tm
net start w32tm

check in event viewer for proper tiem synching (w32tm)

http://support.microsoft.com/kb/262680

Rob (there many other options as well)
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