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My Ubuntu is set to run ntp before dovecot at startup. (See my earlier question: The rc0.d,rc1.d,... directories in /etc)

However, I suspect that dovecot may have finished executing before ntp finished (even if the ntp started executing earlier).

What logs should I look at to find out whether this was the case?

(In case you're interested: The reason for my suspicion is a message like this in /var/log/mail.log when I rebooted my machine (it had been a long time since the last reboot):

dovecot: Fatal: Time just moved backwards by 43 seconds. This might cause a lot of problems, so I'll just kill myself now.

This was fixed by rebooting the machine again, providing further support for my suspicion.)

asked Jul 20, 2013 at 14:55
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    I'm inclined to think that your internet was lagging or not ready while booting, which made ntp updates the clock pretty late and caused dovecot to exit. Commented Jul 20, 2013 at 15:23

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ntp writes to the system log file (could be either daemon.log or syslog.log) any error or warning message. It could be changed in the configuration file ntp.conf using the logfile /path/to/file.log or the -l switch while starting.

answered Jul 20, 2013 at 15:32

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