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Windows and Linux NTP

Discussion in 'Windows XP' started by inquirer300, Jan 13, 2010.

  1. inquirer300

    inquirer300 Flightless Bird

    Regarding the Network Time Protocol (NTP), if we have a Windows XP NTP server
    and the network has other Windows XP clients as well as Linux Redhat 9.0
    clients, what is the process that we need to follow to be able to allow a
    manual clock change on the server to be reflected on all the clients?
    --
    Inquirer300
     
  2. Thee Chicago Wolf [MVP]

    Thee Chicago Wolf [MVP] Flightless Bird

    >Regarding the Network Time Protocol (NTP), if we have a Windows XP NTP server
    >and the network has other Windows XP clients as well as Linux Redhat 9.0
    >clients, what is the process that we need to follow to be able to allow a
    >manual clock change on the server to be reflected on all the clients?


    It's not really smart to set it up the way you have it considering the
    built-in time service will poll ntp.microsoft.com or your own
    preferred ntp server. A manual clock change happens by clicking the
    tray icon clock and setting it by hand. If the host server already HAS
    it's time service running, it will already be synched to
    ntp.microsoft.com in which case your client should be pointing to it
    as well, not your server. You are complicating your environment for no
    good reason.

    - Thee Chicago Wolf [MVP]
     
  3. John Wunderlich

    John Wunderlich Flightless Bird

    =?Utf-8?B?aW5xdWlyZXIzMDA=?= <inquirer300@cfl.rr.com> wrote in
    news:16CB2866-B4E1-456B-843F-5F5362FF5BE0@microsoft.com:

    > Regarding the Network Time Protocol (NTP), if we have a Windows XP
    > NTP server and the network has other Windows XP clients as well as
    > Linux Redhat 9.0 clients, what is the process that we need to
    > follow to be able to allow a manual clock change on the server to
    > be reflected on all the clients?


    Given time, all clients should sync up with the server assuming they
    are properly configured to sync from the server. Clients usually check
    servers every 20 minutes to every 9 hours. I think XP Home is
    once/day. A lot also depends on how much your "manual clock change"
    differs from the current time on the client system. If the difference
    is too big, the client may not accept the change (look in your System
    Event Log). Also, the change will probably not take place
    instantaneously but skew in gradually over time.

    A lot of good information is presented here:
    "Windows Time Service Tools and Settings"
    <http://technet.microsoft.com/en-us/library/cc773263%28WS.10%29.aspx>

    HTH,
    John
     
  4. Tim Slattery

    Tim Slattery Flightless Bird

    inquirer300 <inquirer300@cfl.rr.com> wrote:

    >Regarding the Network Time Protocol (NTP), if we have a Windows XP NTP server
    >and the network has other Windows XP clients as well as Linux Redhat 9.0
    >clients, what is the process that we need to follow to be able to allow a
    >manual clock change on the server to be reflected on all the clients?


    The client's clocks will be reset the next time they query the NTP
    server. AFAIK (and I'm not an expert on this protocol) there's no way
    for the NTP server to tell all machines that might connect to it that
    its clock has been reset.

    --
    Tim Slattery
    Slattery_T@bls.gov
    http://members.cox.net/slatteryt
     

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