Re: PC time software

From: John R Pierce (pierce@No-Spam)
Date: Mon Apr 28 2003 - 16:45:22 MST

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    > Looking for a good FREE and accurate program to set and maintain PC time
    > with systems running XP professional. Would prefer something that
    utilizes
    > the Internet for this. Am using About Time but not so sure that I'm in
    > love with it.
    >
    > Is the date/time function in XP Pro accurate enough?
    >

    why screw around? run the 'real thing', NTP v4, same as the unix servers
    run...

    start here, http://www.ntp.org/

    first, in XP Pro, go into admin tools -> Services, and 'STOP' and 'DISABLE'
    the built in Windows Time Service, its rather sucky (it just hard sets the
    system clock about once a day, which isn't desirable behavior in my book).

    Now, use this GUI install of NTP v4.1.72 for NT/2K/XP...
    http://www.five-ten-sg.com/util/ntp4172.zip

    and configure it to use one or more of these servers...
        server ntp1.sf-bay.org
        server ntp2.sf-bay.org
        server reloj.kjsl.com
        server ntp1.mainecoon.com
        server ntp2.mainecoon.com
        server time.berkeley.netdot.net

    (all of which I chose from the public stratum 2 server list on
    http://www.eecis.udel.edu/~mills/ntp/clock2a.html on the basis of their
    being in the SF bay area, and reasonably well connected and publically
    offered.... if your ISP runs a NTP server, by all means use that... its good
    idea to have 2-3 servers configured).

    leave the service running for an hour or two to stabilize (it takes time to
    set the time :D), and open a commandline window, and type NTPTRACE...

    C:\>ntptrace
    localhost: stratum 3, offset 0.008663, synch distance 0.28957
    lanfill.lmi.net: stratum 2, offset 0.159794, synch distance 0.10738
    usno.pa-x.dec.com: stratum 1, offset -0.084321, synch distance 0.00421,
    refid 'USNO'

    (LMI.NET is my ISP)

    oh, if you have a local unix/linux system, by all means configure ntp v4 on
    it, then use IT as the reference server for the rest of your network
    workstations...



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