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Article View: comp.sys.next.programmer
Article #1436

Re: Drifting clock

#1436
From: Paul J. Sanchez
Date: Tue, 10 Nov 1992 16:55
33 lines
1858 bytes
Meinhard E. Mayer (Hardy) writes
> In article <1992Nov10.021255.8585@cs.brown.edu> rca@cs.brown.edu (Ronald  
C. Antony) writes:
> 
> ???   I realize that my clock on the NeXT keeps running late. So finally  
got
> ???   annoyed enough to try to fix the problem. In the man pages I found  
a 
> ???   reference to /etc/npt.drift
> ???   However the file format is not documented. Does anyone know if  
this
> ???   file can be helpful in getting rid of the problem? If yes, what do  
the
> ???   entries in the file mean?
> 
> If your machine is on a network and you know an ntp (or xntp) host at
> Brown, and if your machine is running ntp (check you /etc/hostconfig
> file), ntp.drift records the drift of your clock vis-a-vis the master
> clock. ntp is adjusting the logical time. 
> We have three servers on campus, and if I want to reset the physical
> clock I issue the command (as root):
> ntp -f -s -v draco.acs.uci.edu einstein.oac.uci.edu paris.ics.uci.edu
> (see the man-page on ntp). 
> 

I have the following little shell script, called timesynch, in  
/usr/local/bin.  Once root starts it, it reruns itself every night at 3AM.   
Substitute your favorite ntp host...

# timesynch shell script
/usr/etc/ntp -s time.telcom.arizona.edu > /dev/null
/usr/bin/sleep 900
/usr/bin/at 3 /usr/local/bin/timesynch
Technical Details
Message-ID: <1992Nov10.165515.21369@organpipe.uug.arizona.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!ornl!utkcs2!darwin.sura.net!jvnc.net!yale.edu!yale!gumby!destroyer!ncar!noao!amethyst!organpipe.uug.arizona.edu!news
References: <HARDY.92Nov9233637@golem.ps.uci.edu>

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Path: arc1-ca.pugleaf.net!sparky!uunet!ornl!utkcs2!darwin.sura.net!jvnc.net!yale.edu!yale!gumby!destroyer!ncar!noao!amethyst!organpipe.uug.arizona.edu!news
From: paul@music.sie.arizona.edu (Paul J. Sanchez)
Newsgroups: comp.sys.next.programmer
Subject: Re: Drifting clock
Message-ID: <1992Nov10.165515.21369@organpipe.uug.arizona.edu>
Date: 10 Nov 92 16:55:15 GMT
References: <HARDY.92Nov9233637@golem.ps.uci.edu>
Sender: news@organpipe.uug.arizona.edu
Organization: University of Arizona UNIX Users Group
Lines: 33