Server time syncronize

J

Joe

I have a Windows 2000 network and I would like my DC
clock to syncronize with an Internet time provider ie.
time.gov etc. Can someone give me the steps to do that?
 
S

S.J.Haribabu

Hi Joe,

Thanks for posting. I did some research and found the following step by
step article.

Synchronize the Time Server for the Domain Controller with an External
SourceBy default, the primary domain controller (PDC) emulator gets its
time from the BIOS clock. In a network with a single DC, that DC
automatically has this role. For more information about PDCs, see "Part 1:
Designing and Deploying Directory Services" in Designing and Deploying
Directory and Security Services of this kit.

The PDC emulator establishes the time and date settings for all computers
within its domain. If the time is not accurately set in the PDC emulator’s
BIOS, all computers in the domain have incorrect time and date settings.

To prevent this, you can synchronize the domain controller with an external
time source such as the time servers provided by the National Institute of
Standards and Technology (NIST). For a list of the names and IP addresses
of NIST time servers for your area, see the National Institute of Standards
and Technology (NIST) Internet Time Servers link on the Web Resources page
at http://www.microsoft.com/windows/reskits/webresources.

Note

Be aware that the Network Time Protocol (NTP) is unauthenticated, and
unencrypted, and it is possible for an intruder to spoof the time root
source, causing the wrong time to be set on the DC. You can avoid this
possibility by using IPSec to secure the transmission, by accessing the
time root source by its IP address rather than its fully qualified domain
name, or by purchasing an NTP-capable hardware clock for your DC time
synchronization.
To synchronize the domain controller with an external time source
Click Start, and then click Command Prompt.
In the Command Prompt window, type the following line, where peers is a
comma-separated list of IP addresses of the appropriate time sources, and
press ENTER:
w32tm /config /manualpeerlist: peers /syncfromflags:MANUAL

The time sources you choose depend on your time zone. For example, if your
domain controller is located in the Pacific Time zone, this line might read:

w32tm /config /manualpeerlist:131.107.1.10 /syncfromflags:MANUAL

In this example, the IP address of the timeserver is used instead of the
fully qualified domain name for security purposes.

Press ENTER. You should get a message that the command completed
successfully.
Type w32tm /config /update
Press ENTER. You should get a message that the command completed
successfully.
W32time uses a variable poll interval based on the quality of timesync with
the server. On DCs, this interval defaults to between 64 and 1024 seconds.

To immediately synchronize with the external time server, type w32tm
/resync and press ENTER. You should get a message that the command
completed successfully.
Type Exit and press ENTER.

Thanks,

(e-mail address removed)

This posting is provided "AS IS" with no warranties, and confers no rights.
 

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