[Dovecot] Time moved backwards
Neal Becker
ndbecker2 at gmail.com
Thu May 15 17:15:21 EEST 2008
Here's another thought:
>From man ntpd:
If the -x option
is included on the command line, the clock will never be stepped and
only slew corrections
will be used.
The issues should be carefully explored before deciding to use
the -x option. The maximum
slew rate possible is limited to 500 parts-per-million (PPM) as a
consequence of the correct-
ness principles on which the NTP protocol and algorithm design are
based. As a result, the
local clock can take a long time to converge to an acceptable offset,
about 2,000 s for each
second the clock is outside the acceptable range. During this
interval the local clock will
not be consistent with any other network clock and the system cannot
be used for distributed
applications that require correctly synchronized network time.
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