[ntp:questions] ntpdate works, but ntpd doesn't (reach = 0)

Danny Mayer mayer at ntp.isc.org
Wed Feb 11 03:43:46 UTC 2009

Uwe Klein wrote:
> Richard B. Gilbert wrote:
>> Harlan Stenn wrote:
>>>>>> In article <uck566-23p.ln1 at gateway.py.meinberg.de>, Martin Burnicki 
>>>>>> <martin.burnicki at meinberg.de> writes:
>>> Harlan> Because ntpd also gets restarted, and there is a strong belief 
>>> that
>>> Harlan> -g is bad for a restart and restarts will happen more often than
>>> Harlan> boots.
>>> Martin> Huh? I'm afraid I don't understand what you mean here.
>>> The general case is that -g should only be used at startup, when time 
>>> can be
>>> stepped.
>>> If ntpd is restarted, it is Bad for the time to be stepped backwards for
>>> many people.  Since this could happen with -g, when restarting ntpd 
>>> for this
>>> common case, one should not use -g.
>> Why should it be necessary to restart ntpd????  Unless I have a power 
>> failure that lasts longer than my UPS, I almost never restart my NTP 
>> server!  Same for the NTP clients.
>> Systems that go down and up like a yo-yo are never going to know what 
>> time it is anyway!
> See:
> currently on SuSE systems 'rcntpd restart' is run on any interface changes.
> uwe

Why? ntpd support dynamic interface changes.


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