On Sat, Jun 06, 2009 at 04:17:39PM -0400, Harlan Stenn wrote:
Juergen Daubert wrote:
On Sat, Jun 06, 2009 at 08:19:14PM +0200, Arno Wald wrote:
I am running dovecot on a PC (a workstation) to have a mail client
independent storage for my mails. Now I would like to have the system
clock set correctly by using ntpd or ntpdate (using debian/sid).The problem is, that the PC is not online at boot time, but is set
online on demand manually using "pon" to start the pppd later. So ntpd
cannot sync the time on boot time before dovecot gets started.Chrony is what you are looking for, see http://chrony.sunsite.dk/
How will chrony help here if the PC is not online at boot time?
chronyd can perform usefully in an environment where access to the time reference is intermittent. chronyd estimates both the current time offset and the rate at which the computer's clock gains or loses time, and can use that rate estimate to trim the clock after the reference disappears.
chronyd provides support to work out the gain or loss rate of the `real-time clock', i.e. the clock that maintains the time when the computer is turned off. It can use this data when the system boots to set the system time from a corrected version of the real-time clock.
--
Juergen Daubert | mailto:jue@jue.li
Korb, Germany | http://jue.li/crux