No one can help me?
On Sat, 2007-02-24 at 00:17 +0100, Simone Marzona wrote:
> Hi all
>
> I got a strange problem: sometimes imap auth fails. It seems that this
> appens random, account, imap client ( also webmail from localhost..) and
> load average may vary, the only thing that remains the same is the imap
> protocol.
>
> I use this toaster version on mandriva:
>
> rpm -qa | grep toaster
> ucspi-tcp-toaster-0.88-1.3.1mdk
> ezmlm-cgi-toaster-0.53.324-1.3.1mdk
> maildrop-toaster-devel-2.0.2-1.3.1mdk
> qmailadmin-toaster-1.2.9-1.3.1mdk
> control-panel-toaster-0.5-1.3.1mdk
> ezmlm-toaster-0.53.324-1.3.1mdk
> maildrop-toaster-2.0.2-1.3.1mdk
> qmail-toaster-1.03-1.3.6mdk
> isoqlog-toaster-2.1-1.3.1mdk
> vpopmail-toaster-5.4.13-1.3.1mdk
> autorespond-toaster-2.0.4-1.3.1mdk
> squirrelmail-toaster-1.4.6-1.3.1mdk
> spamassassin-toaster-3.1.7-1.3.5mdk
> simscan-toaster-1.2-1.3.1mdk
> qmail-pop3d-toaster-1.03-1.3.6mdk
> libdomainkeys-toaster-0.68-1.3.1mdk
> daemontools-toaster-0.76-1.3.1mdk
> ripmime-toaster-1.4.0.6-1.3.1mdk
> send-emails-toaster-0.5-1.3.1mdk
> courier-imap-toaster-4.1.1-1.3.2mdk
> clamav-toaster-0.88.5-1.3.4mdk
> courier-authlib-toaster-0.58-1.3.1mdk
> qmailmrtg-toaster-4.2-1.3.1mdk
>
> my mysql installation is made on a different machine (but same lan..)
> from the one that it's serving imap.
>
> The error compares both if I login from network than from localhost
> where the courier runs.
>
> What I test made :
>
> -debug=2 in imapd for viewing the password used for the auth (them were
> always correct but sometimes the login fails anyway..)
> -monitored the number of connection to my dmbs (I've reached about an
> half of the limit set at 250 in my.cnf)
> -verified that courier was configured to allow a sufficent number of
> simultaneous connection (even from the same ip, respectively 180 and
> 50).
> -whatched for softlimit problems (no one)
> -logged all the sql query from mysql debug used to get user and
> passwords from the dbms
> -I "tcpdump-ed" network traffic findong no interesting errors
> -I saw that in previous versions of vpopmail and courier there were
> "sometimes failed logins".. but this happened 2 versions ago.. and in
> the last 10 months no one in this mailing list turned out with a problem
> similar to this one.
>
> So, finally, is there something that I'm missing? Is there some known
> bug?
> Is there a possibility that sometimes daemontols "forget" to fork
> imaplogin process and so auth may fail? (my dbms is heavily used it's
> not simple for me to monitor every login attempt and see the
> corresponding query on the other host). I'm sure that for every login
> attempt I see some entry in imapd/current.. so I think that daemontools
> are ok...
>
> Note that: the same toaster is used for pop3 and smtp (authenticated)
> with no (not one) problem of auth.
>
> many thanks
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