dovecot - Jul 2008 - "check pass; user unknown"

Hi,


I'm using dovecot v1.0.rc15 (from debian etch) and I have some performance
problems.

Every time I log in I see the following in the mail log:

----
Jul  8 21:05:31 myserver dovecot-auth: (pam_unix) check pass; user unknown
Jul  8 21:05:31 myserver dovecot-auth: (pam_unix) authentication failure;
logname=uid=0 euid=0
tty=dovecot ruser= rhost=127.0.0.1
Jul  8 21:05:33 myserver dovecot: imap-login: Login: user=<mogorva at
mydomain.hu>,method=PLAIN,
rip=127.0.0.1, lip=127.0.0.1, secured
Jul  8 21:05:33 myserver dovecot: IMAP(mogorva at mydomain.hu): Disconnected:
Logged out
----

It doesn't matter if I use Squirrelmail or Thunderbird (as POP3 client), the
first try is always
empty username and password so it slows down terribly every action.

What's more I'm using postgres authentication and there are no local
system users.
This problem didn't come out with previous version of dovecot.

Thank you in advance,
zs-

Hi all,

Sorry for the mail below, we have found the solution.

We had to comment out the "passdb pam {" line in dovecot.conf althoug
this section was empty. This
solved all the problems.

Bye,
zs-

> Hi,
>
>
> I'm using dovecot v1.0.rc15 (from debian etch) and I have some
performance problems.
>
> Every time I log in I see the following in the mail log:
>
> ----
> Jul  8 21:05:31 myserver dovecot-auth: (pam_unix) check pass; user unknown
> Jul  8 21:05:31 myserver dovecot-auth: (pam_unix) authentication failure;
logname=uid=0 euid=0
> tty=dovecot ruser= rhost=127.0.0.1
> Jul  8 21:05:33 myserver dovecot: imap-login: Login: user=<mogorva at
mydomain.hu>,method=PLAIN,
> rip=127.0.0.1, lip=127.0.0.1, secured
> Jul  8 21:05:33 myserver dovecot: IMAP(mogorva at mydomain.hu):
Disconnected: Logged out
> ----
>
> It doesn't matter if I use Squirrelmail or Thunderbird (as POP3
client), the first try is always
> empty username and password so it slows down terribly every action.
>
> What's more I'm using postgres authentication and there are no
local system users.
> This problem didn't come out with previous version of dovecot.
>
> Thank you in advance,
> zs-
>
>
>