[Dovecot] ntp revisited (so what to do ?)
Per Jessen
per at computer.org
Mon May 9 09:28:38 EEST 2011
Stan Hoeppner wrote:
> On 5/8/2011 5:07 AM, Spyros Tsiolis wrote:
>>
>> OK,
>>
>> So what you people say is :
>>
>> 1. Run "ntpdate" during startup only once
>> 2. After that, keep time with ntpd
>>
>> Right ?
>
> When running ntpd don't run ntpdate at startup, or any time. Use one
> or the other, not both (if you incorrectly use both, ntpdate will
> throw off drift calculations in ntpd). This is the proper setup for
> bare metal hosts.
The usual setup is to do exactly that though - ntpdate (now sntp) at
startup to make sure the initial setting is reasonable, then ntpd to
keep it in sync.
/Per Jessen, Zürich
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