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<H1>[Mageia-dev] Why ntpdate still there?</H1>
<B>Pierre Jarillon</B>
<A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20Why%20ntpdate%20still%20there%3F&In-Reply-To=%3C201302111523.44584.jarillon%40abul.org%3E"
TITLE="[Mageia-dev] Why ntpdate still there?">jarillon at abul.org
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<I>Mon Feb 11 15:23:44 CET 2013</I>
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<PRE>Le lundi 11 février 2013 13:18:23, Colin Guthrie a écrit :
><i> So ntpdate as a service is just a one-shot thing, it happens once at
</I>><i> boot to ensure the clocks are properly set and then ntpd takes over for
</I>><i> the rest of the time that machine stays up.
</I>><i>
</I>><i> As far as I'm aware, there is nothing integrated into crontab regarding
</I>><i> ntpdate, but please feel free to correct me on that one.
</I>
Yes, this was the old system. I am not an expert in ntp, but I have read
carefully <A HREF="http://ntp.org">http://ntp.org</A> few years ago and I return on it now and then.
I can miss something... I am not the truth!
On the web site <A HREF="http://www.ntp.org/">http://www.ntp.org/</A> ->Implementation Documentation
<A HREF="http://www.eecis.udel.edu/~mills/ntp/html/ntpdate.html">http://www.eecis.udel.edu/~mills/ntp/html/ntpdate.html</A> said:
Disclaimer: The functionality of this program is now available in the ntpd
program. See the -q command line option in the ntpd - Network Time Protocol
(NTP) daemon page. After a suitable period of mourning, the ntpdate program is
to be retired from this distribution
And <A HREF="http://www.eecis.udel.edu/~mills/ntp/html/ntpd.html">http://www.eecis.udel.edu/~mills/ntp/html/ntpd.html</A> and the man tell us:
-q
Exit the ntpd just after the first time the clock is set. This behavior mimics
that of the ntpdate program, which is to be retired. The -g and -x options can
be used with this option. Note: The kernel time discipline is disabled with
this option.
-g
Normally, ntpd exits with a message to the system log if the offset exceeds the
panic threshold, which is 1000 s by default. This option allows the time to be
set to any value without restriction; however, this can happen only once. If
the threshold is exceeded after that, ntpd will exit with a message to the
system log. This option can be used with the -q and -x options. See the tinker
command for other options.
The same options are set in the man of ntp.
IMO, ntpdate should be replaced with: ntpd -gq
I don't understand why ntpdate is listed as an active daemon in drakxservices.
In /etc/sysconfig/ntpd :
- Mageia 1 : OPTIONS="-u ntp:ntp -p /var/run/ntpd.pid"
- Mageia 2 : OPTIONS="-g"
- Mageia 3 : OPTIONS="-g"
Then it seems that ntpdate is no longer useful since Mageia 2.
--
Pierre Jarillon - <A HREF="http://pjarillon.free.fr/">http://pjarillon.free.fr/</A>
Vice-président de l'ABUL : <A HREF="http://abul.org">http://abul.org</A>
Microsoft is for computers what McDonald is for French gastronomy
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