[Mageia-dev] Why ntpdate still there?

Mon Feb 11 16:24:08 CET 2013

'Twas brillig, and Pierre Jarillon at 11/02/13 14:34 did gyre and gimble:
+> Le lundi 11 février 2013 13:57:52, Johnny A. Solbu a écrit :
+>> I have a few setups where running an ntp daemon is undesired, yet I need to
+>> periodically manually set the clock. I have two laptops which is off most
+>> of the time, and when I do use them I don't always have a network
+>> connection. So I need to set the clock manually using ntpdate when I do
+>> have a connection.
+>>
+>> If it disappears I will miss it, and most likely look for a replacement, if
+>> there is one.
+> 
+> According my reply to Colin, ntpd -g  does the same job than ntpdate.
+> The option -g is now used by default in /etc/sysconfig/ntpd
+> 
+> Perhaps a script "ntpdate" executing  `ntpd -g` could be useful?
+> 
+> I have also a question about ntp-wait : I have read its code (perl) but I 
+> don't understand what is its use.
+
+In theory it's meant to wait until the time is stable, and holds up
+time-sync.target accordingly.  Thus any other systemd unit that is
+ordered "After=time-sync.target" will be delayed until after ntp-wait
+has exited.
+
+time-sync.target is meant to be a generic name and thus any units that
+need such ordering should use it and not ntp-wait.service directly
+(other ntp implementations may achieve the same result, but with
+different units).
+
+I'm not overly sure we actually have anything ordered after
+time-sync.target anyway, but that's why it exists (to the best of my
+understanding anyway)
+
+Col
+
+
+-- 
+
+Colin Guthrie
+colin(at)mageia.org
+http://colin.guthr.ie/
+
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