[Dovecot] No authentication sockets found

funkypunky drunky funkypunkydrunky at gmail.com
Mon May 21 12:10:01 EEST 2007


Hi stewart i can see these errors in my log if i try to start dovecot while
dovecot is working. It start to gives error after some time. I think it may
be corrected. Because if someone forget dovecot is working and give command
/usr/local/sbin/dovecot it cannot contact the authentication socket. My
dovecot is on AIX 5.3 i am not using ssl. Maybe it can give you some idea
about your authenticaiton socket problem. It is not about MTA. i am sorry
for my previous message. I hope you can find out your solution.

May 21 11:59:36 mailtest mail:info dovecot: auth(default): master out:
USER     7       AB105560        home=/mail/vmail/AB105560/
quota=maildir:storage=9000000   uid=5000        gid=5000
May 21 11:59:36 mailtest mail:info dovecot: imap-login: Login:
user=<AB105560>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured
May 21 11:59:36 mailtest mail:info dovecot: IMAP,user=<AB105560>,lip=
127.0.0.1 rip=127.0.0.1 method= : Loading modules from directory:
/usr/local/lib/dovecot/imap
May 21 11:59:36 mailtest mail:info dovecot: IMAP,user=<AB105560>,lip=
127.0.0.1 rip=127.0.0.1 method= : Module loaded:
/usr/local/lib/dovecot/imap/lib10_quota_plugin.so
May 21 11:59:36 mailtest mail:info dovecot: IMAP,user=<AB105560>,lip=
127.0.0.1 rip=127.0.0.1 method= : Module loaded:
/usr/local/lib/dovecot/imap/lib11_imap_quota_plugin.so
May 21 11:59:36 mailtest mail:info dovecot: IMAP,user=<AB105560>,lip=
127.0.0.1 rip=127.0.0.1 method= : Effective uid=5000, gid=5000,
home=/mail/vmail/AB105560/
May 21 11:59:36 mailtest mail:info dovecot: IMAP,user=<AB105560>,lip=
127.0.0.1 rip=127.0.0.1 method= : Namespace: type=private, prefix=, sep=.,
inbox=yes, hidden=no, subscriptions=no
May 21 11:59:36 mailtest mail:info dovecot: IMAP,user=<AB105560>,lip=
127.0.0.1 rip=127.0.0.1 method= : maildir: data=/mail/vmail/AB105560/
May 21 11:59:36 mailtest mail:info dovecot: IMAP,user=<AB105560>,lip=
127.0.0.1 rip=127.0.0.1 method= : maildir: root=/mail/vmail/AB105560,
index=/mail/vmail/AB105560, control=, inbox=
May 21 11:59:36 mailtest mail:info dovecot: IMAP,user=<AB105560>,lip=
127.0.0.1 rip=127.0.0.1 method= : Disconnected: Logged out
May 21 11:59:39 mailtest mail:err|error dovecot: imap-login: No
authentication sockets found
May 21 11:59:39 mailtest mail:err|error dovecot: child 1151150 (login)
returned error 89
May 21 11:59:40 mailtest mail:err|error dovecot: imap-login: No
authentication sockets found
May 21 11:59:40 mailtest mail:err|error dovecot: child 266360 (login)
returned error 89



2007/5/18, Stewart Dean <sdean at bard.edu>:
>
> Back on 5/9, I made a post by this subject
> http://dovecot.org/list/dovecot/2007-May/022482.html
> Timo replied:
> > The error message means that /var/run/dovecot/login directory or its
> > contents was deleted while Dovecot was running. I'd guess that you start
> > Dovecot too early and after startup another script goes and deletes the
> > entire /var/run/ directory. Or maybe that's done in background. Or
> > something..
> and funkypunkydrunky reported:
> > I have lived the same problem in my system. But not evrytime sometimes
> it
> > only happens when i restart dovecot while mta is working. I think
> postfix
> > (my mta) cannot connect the new authentication socket. If i need the
> > restarting dovecot, i restart postfix  too. It happens only for the
> above
> > situation.
> This happened again under these circumstances:
> 1) The machine had been up for 5 days.  Having made some changes
> (largely de-verbosifying the dovecot.conf file), I killed the master
> dovecot process and restarted it (this before I was informed I could
> just do a kill -1 to effect the same result with less trouble).
> > May 14 15:34:09 mercury mail:info dovecot: Dovecot v1.0.0 starting up
> >
> >
> 2) Using TBird a an imap client, I got back on
> > May 14 15:24:48 mercury mail:info dovecot: auth(default): client out:
> CONT      1
> > May 14 15:24:48 mercury mail:info dovecot: auth(default): client in:
> CONT       1       AHNkZWFuAEFsYW1hcjJi
> > May 14 15:24:48 mercury mail:info dovecot: auth(default): pam(sdean,
> 10.20.10.75): lookup service=dovecot
> > May 14 15:24:49 mercury mail:info sendmail-SndRcv[2220248]:
> l4EJOief2949348: to=<cooper at bard.edu>, delay=00:00:01, xdelay=00:00:01,
> mailer=local, pri=36928, dsn=2.0.0, stat=Sent
> > May 14 15:24:49 mercury mail:info dovecot: auth(default): client out:
> OK        1       user=sdean
> > May 14 15:24:49 mercury mail:info dovecot: auth(default): master in:
> REQUEST    6       909440  1
> > May 14 15:24:49 mercury mail:info dovecot: auth(default): passwd(sdean,
> 10.20.10.75): lookup
> > May 14 15:24:49 mercury mail:info dovecot: auth(default): master out:
> USER      6       sdean   system_user=sdean       uid=202 gid=200
> home=/home/hcrc/sdean
> > May 14 15:24:49 mercury mail:info dovecot: imap-login: Login:
> user=<sdean>, method=PLAIN, rip=10.20.10.75, lip=192.246.229.21, TLS
> > May 14 15:24:49 mercury mail:info dovecot: IMAP(sdean): Effective
> uid=202, gid=200, home=/home/hcrc/sdean
> > May 14 15:24:49 mercury mail:info dovecot: IMAP(sdean): mbox:
> data=/home/hcrc/sdean/mail:INBOX=/var/spool/mail/sdean:INDEX=/var/dcndx/sdean
> > May 14 15:24:49 mercury mail:info dovecot: IMAP(sdean): mbox:
> root=/home/hcrc/sdean/mail, index=/var/dcndx/sdean,
> inbox=/var/spool/mail/sdean
> >
> >
> >
> 3) 15 seconds after that, I started seeing a slew of these error
> messages, every 15 seconds or so:
> > May 14 15:25:03 mercury mail:info imapd[2052334]: Logout user=ot119
> host=[10.20.10.10]
> > May 14 15:25:04 mercury mail:err|error dovecot: imap-login: No
> authentication sockets found
> > May 14 15:25:04 mercury mail:err|error dovecot: child 835676 (login)
> returned error 89
> >
> 4) Since this is the production server, I kill the master dovecot
> instance and reinvoke dovecot in the foreground.  I haven't seen the
> problem again since....but twice is problematic with just 3 people using
> DC.
>
> Now.  My thoughts about what has been suggested so far, first by Timo:
> 1) This machine had been booted 5 days before so it's not a boot related
> problem
> 2) I'd find it hard to believe that something is nuking the contents of
> /var/run because:
>    a) The directory doesn't exist by default in AIX; I created it for
> the DC install
>    b) I have cron jobs that do cleanup with /var/log, /var/log/arc and
> /var/spool/mqueue, but nothing that does anything to /var/run
> 3) /var/run is local to the DC host and is not exported
> 4) funkypunkydrunky's comments about interaction with the MTA (sendmail
> in my case) seem unlikely, since it doesn't use SSL...or the same ports
>
> My questions:
> 1) What is happening?  This is OpenSSL related, yes?
> 2a) Will this affect my production UWIMAP (which also supports/utilizes
> SSL)?  If it doesn't, I can take my time debugging it (given that there
> are only 3 IT guys using DC currently), instead of frantically shutting
> it up by rebooting ASAP.  I /think/ previously established DC
> connections continued to work
> 2b) How will this affect other imaps DC nex and pre-extant connections?
> I'm thinking of putting the whole IT dept on DC, but it'd be good to
> know how flaky things would get if/when this happens again.
> 3) What can I do to debug it, given that it happens infrequently and of
> no known causation?  What should I check and look for afterwards? I
> guess I could put a cronjob that checks that /var/run/dovecot/login/
> default= and ssl-parameters.dat exists periodically
>
> ====
> Stewart Dean, Unix System Admin, Henderson Computer Resources
>
> Center of Bard College, Annandale-on-Hudson, New York  12504
> sdean at bard.edu  voice: 845-758-7475, fax: 845-758-7035
>
>


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