RE: How to keep sensors in sync using NTP?
From: BearingPoint (rduffner@bearingpoint.biz)Date: 10/16/02
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From: Duffner, Rainer (BearingPoint) <rduffner@bearingpoint.biz> To: 'spy guy' <spyguy703@earthlink.net>, Bruno Sicchieri <bsicchieri@hotmail.com> Date: Wed, 16 Oct 2002 17:13:20 +0200
> -----Original Message-----
> From: spy guy [mailto:spyguy703@earthlink.net]
> Sent: Tuesday, October 15, 2002 9:07 PM
> To: Bruno Sicchieri
> Cc: focus-ids@securityfocus.com
> Subject: Re: How to keep sensors in sync using NTP?
>
>
> I believe the tool you should use is ntpdate. Its an ntp client.
No it's not.
ntpdate is best only run at bootup, to correct a stray clock - if at all.
Sudden time-jumps are not good for computer-systems - it might break your
applications
one day, or you might get "unexpected" behaviour, like two cron-jobs
fighting to process
a certain file.
ntpdate from a cron-job is like repairing a wrist-watch with a sledge-hammer
;-)
Rainer
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