Strange behaviour with courrier-imap and NFS (time sync)

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Strange behaviour with courrier-imap and NFS (time sync)

by PAGES Vincent :: Rate this Message:

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Hi,

I'm a french system engineer, and I'm working with courrier-imap for 5
years. I've discovered a strange behaviour when I tried to move a
FreeBSD jail to an other machine.

The thing is that the new host was not synchronized with our time
server. So it was impossible to log on.

There was nothing in the log about it. The only way to have the error
message was to start imapd by the command line.

imapd /isp/mail/<domain>/<user>/Maildir
* BYE Clock skew detected. Check the clock on the file server
$ sh: turning off NDELAY mode

That's how we found that both nfs and imapd server have to be synchronized.

It's not really a bug, but as there is no information in the log, it's
difficult to make a diagnosis.

--
Regards,

Vincent

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Re: Strange behaviour with courrier-imap and NFS (time sync)

by Sam Varshavchik :: Rate this Message:

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PAGES Vincent writes:

> There was nothing in the log about it. The only way to have the error
> message was to start imapd by the command line.
>
> imapd /isp/mail/<domain>/<user>/Maildir
> * BYE Clock skew detected. Check the clock on the file server

"* BYE" is a valid IMAP error message. If your mail client fails to report
this error message upon receiving it, it's a bug in your mail client.



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Re: Strange behaviour with courrier-imap and NFS (time sync)

by Ben Kennedy :: Rate this Message:

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Sam Varshavchik wrote at 6:09 PM (-0400) on 6/23/08:

>PAGES Vincent writes:
>
>> There was nothing in the log about it. The only way to have the error
>> message was to start imapd by the command line.
>>
>> imapd /isp/mail/<domain>/<user>/Maildir
>> * BYE Clock skew detected. Check the clock on the file server
>
>"* BYE" is a valid IMAP error message. If your mail client fails to report
>this error message upon receiving it, it's a bug in your mail client.

I think Vincent's point was that since the message is reporting a
problem on the server, it would be useful if the same information were
actually reported in the server log (which apparently it is not).

-ben



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