Setting up time synch

Discussion in 'Server Setup' started by Dana, May 7, 2009.

  1. Dana

    Dana Guest

    Hi,

    We have a domain environment with a W2K3 server and a W2K3 terminal server.
    How do I get the main server to get the correct time via the internet and
    have that time always synch across the network (term srver and all WinXP
    PCs)?

    Thx,

    D
     
    Dana, May 7, 2009
    #1
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  2. Hello Dana,

    On the DC with the PDCEmulator FSMO:

    w32tm /config /manualpeerlist:peers /syncfromflags:manual /reliable:yes /update

    With "peers" you can set the time source, either DNS name (time.windows.com)
    or an ip address from a reliable time source.

    Here you can find some of them:
    http://www.pool.ntp.org/

    If some domain machines have problems

    w32tm /config /syncfromflags:domhier /update

    After that run:
    net stop w32time
    net start w32time

    Best regards

    Meinolf Weber
     
    Meinolf Weber [MVP-DS], May 8, 2009
    #2
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  3. Dana

    Dana Guest

    Hi Meinolf,

    Sorry but I'm a little confused with:

    On the DC with the PDCEmulator FSMO: **What's FSMO? **

    w32tm /config /manualpeerlist:peers /syncfromflags:manual /reliable:yes
    /update

    With "peers" you can set the time source, either DNS name
    (time.windows.com)
    or an ip address from a reliable time source.

    ** So do I use ":peers" or in PLACE of peers have an IP address or DNS
    name? **
    ** Would you please give me an actual example and does this need to be done
    at every reboot? **

    Thx again.

    D
     
    Dana, May 8, 2009
    #3
  4. Dana

    Dana Guest

    Oh, one other thing: the XP PCs will automatically synch to the server's
    time?
     
    Dana, May 8, 2009
    #4
  5. Hello Dana,

    In a domain the Domain controller with the PDCEmulator role is the time source
    of all other domain machines. If you have only one DC this one has all 5
    FSMO roles. Check with "netdom query fsmo" in a command prompt without the
    quotes. Therefore you have to install the support\tools\suptools.msi form
    the 2003 installation disk if not done.

    FSMO are the Flexible single master operations:
    http://technet.microsoft.com/en-us/library/cc773108(WS.10).aspx

    http://support.microsoft.com/kb/223346/en-us

    Peers is a placeholder here, so replace either with ip address or servername.

    Examples, one for name the other for ip address:
    w32tm /config /manualpeerlist:time.windows.com /syncfromflags:manual /reliable:yes
    /update

    w32tm /config /manualpeerlist:x.x.x.x /syncfromflags:manual /reliable:yes
    /update

    This is a one time configuration, except you change the DC which has the
    PDCEmulator role. No reboot is required.

    Best regards

    Meinolf Weber
     
    Meinolf Weber [MVP-DS], May 9, 2009
    #5
  6. Hello Dana,

    All domain controllers sync with the PDCEmluator in a domain and the workstations
    and member servers choose one available DC in the domain for the time sync.
    So all have the same time.

    If something does not work and you have errors in the event viewer about
    time sync, make sure that port 123 udp is openend on firewalls.

    If domain machines does not sync correct run:
    w32tm /config /syncfromflags:domhier /update

    After that run:
    net stop w32time
    net start w32time

    Best regards

    Meinolf Weber
     
    Meinolf Weber [MVP-DS], May 9, 2009
    #6
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