[Dovecot] Question about SASL auth

[Mark Sapiro]

Timo Sirainen wrote:
>
>On Tue, 2010-03-23 at 09:28 -0700, Mark Sapiro wrote:
>> >> Mar  6 07:06:20 sbh16 postfix/smtpd[30273]: warning: SASL: Connect to
>> >> private/auth failed: Resource temporarily unavailable
>
>What about Dovecot's logs? Do you see e.g.:
>
>master: Warning: service(auth): process_limit reached, client
>connections are being dropped


No, I see no such messages. The only recent messages from dovecot:
master are from shutdowns and startups.


>How many imap/pop3/smtpd processes do you typically have?


3 to 5 postfix smtpd listeners

I think the following is fairly typical for dovecot (it listens on
pop3, pop3s, imap and imaps). I am essentially the only imap user and
it would be rare to have two concurrent pop3 connections.

[root at sbh16 ~]# ps -fwA |grep [d]ovecot
dovecot   2562  2913  0 18:56 ?        00:00:00 dovecot/auth
root      2913     1  0 Mar22 ?        00:00:05 /usr/local/sbin/dovecot
dovecot   2914  2913  0 Mar22 ?        00:00:01 dovecot/anvil
root      2915  2913  0 Mar22 ?        00:00:02 dovecot/log
root      5702  2913  0 21:01 ?        00:00:00 dovecot/auth -w
root     18333  2913  0 07:23 ?        00:00:01 dovecot/config
dovecot  18459  2913  0 07:28 ?        00:00:00 dovecot/imap-login
dovecot  18460  2913  0 07:28 ?        00:00:00 dovecot/imap-login
mark     18462  2913  0 07:28 ?        00:00:01 dovecot/imap
gpc      18463  2913  0 07:28 ?        00:00:00 dovecot/imap
dovecot  24840  2913  0 11:39 ?        00:00:00 dovecot/imap-login
mark     24841  2913  0 11:39 ?        00:00:00 dovecot/imap
[root at sbh16 ~]#

One curious thing I noticed

[root at sbh16 ~]# grep 16817 /var/log/maillog
Mar 26 06:22:58 sbh16 postfix/smtpd[16817]: warning: SASL: Connect to
private/auth failed: Resource temporarily unavailable
Mar 26 06:22:58 sbh16 postfix/smtpd[16817]: fatal: no SASL
authentication mechanisms
Mar 26 06:22:59 sbh16 postfix/master[25437]: warning: process
/usr/libexec/postfix/smtpd pid 16817 exit status 1
[root at sbh16 ~]#

I.e. the log goes back to March 21, and those 3 messages are the only
occurrences of that postfix/smtpd PID. The same is true for other
occurrences of the problem.

-- 
Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan