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Maple Thorpe

2010-Nov-02 09:34 UTC

[Dovecot] Converting to 2.0 and LMTP have userdb and auth-worker complaints

Using rpms and converted dovecot.conf with doveconf. Need assistance to
determine how to resolve 'auth-worker' and userdb complaint. 

logging into mysql from commandline with mail admin acct and using
dovecot sql query is successful but the following fails:

doveadm auth -x service=imap -x lip=127.0.0.1 john
Password: 
passdb: john auth failed
extra fields:
  temp
doveadm(root): Fatal: Couldn't connect to auth socket

sudo /usr/libexec/dovecot/imap -u john
Error: userdb lookup(john): Disconnected unexpectedly
Fatal: Internal error occurred. Refer to server log for more
information.

sudo /usr/libexec/dovecot/imap -u john at homenet.lan
Error: userdb lookup(john at homenet.lan): Disconnected unexpectedly
Fatal: Internal error occurred. Refer to server log for more
information.

Additional info:
------------------
dovecot log messages
------------------
Nov 02 03:27:39 master: Info: Dovecot v2.0.1 starting up (core dumps
disabled)
Nov 02 03:27:50 lmtp(17281): Debug: none: root=, index=, control=,
inboxNov 02 03:27:50 lmtp(17281): Info: Connect from local
Nov 02 03:27:50 auth: Fatal: net_connect_unix(auth-worker) failed:
Permission denied
Nov 02 03:27:50 lmtp(17281): Error: userdb lookup(john at homenet.lan):
Disconnected unexpectedly
Nov 02 03:27:50 lmtp(17281): Debug: none: root=, index=, control=,
inboxNov 02 03:27:50 lmtp(17281): Info: Connect from local
Nov 02 03:27:50 lmtp(17281): Debug: none: root=, index=, control=,
inboxNov 02 03:27:50 lmtp(17281): Info: Connect from local
Nov 02 03:27:50 lmtp(17281): Debug: none: root=, index=, control=,
inboxNov 02 03:27:50 lmtp(17281): Info: Connect from local
Nov 02 03:27:50 lmtp(17281): Debug: none: root=, index=, control=,
inboxNov 02 03:27:50 lmtp(17281): Info: Connect from local
Nov 02 03:27:50 master: Error: service(auth): command startup failed,
throttling
Nov 02 03:28:50 auth: Fatal: net_connect_unix(auth-worker) failed:
Permission denied
Nov 02 03:28:50 lmtp(17281): Error: userdb lookup(john at homenet.lan):
Disconnected unexpectedly
Nov 02 03:28:51 master: Error: service(auth): command startup failed,
throttling
------------------
postfix log messages
------------------
Nov  2 03:27:50 roxie postfix/lmtp[17342]: 98F39122892:
to=<john at homenet.lan>, relay=mail.homenet.lan[private/dovecot-lmtp],
conn_use=8, delay=38251, delays=38069/182/0.01/0.07, dsn=4.3.0,
status=deferred (host mail.homenet.lan[private/dovecot-lmtp] said: 451
4.3.0 <john at homenet.lan> Internal error occurred. Refer to server log
for more information. (in reply to RCPT TO command))
------------------
doveconf -n
------------------
# 2.0.1: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.35.6-48.fc14.i686 i686 Fedora release 14 (Laughlin) 
auth_mechanisms = plain login cram-md5
listen = *
log_path = /var/log/dovecot.log
mail_debug = yes
mail_location = maildir:%h/Maildir/
passdb {
  args = /etc/dovecot/dovecot-mysql.conf
  driver = sql
}
plugin {
  trash = /etc/dovecot/trash.conf
}
protocols = imap lmtp
service auth-worker {
  group = postfix
  user = postfix
}
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0660
    user = postfix
  }
  user = postfix
}
service imap {
  executable = imap
}
service lmtp {
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    group = postfix
    mode = 0660
    user = postfix
  }
}
shutdown_clients = no
ssl_cert = </etc/pki/tls/certs/mail-server-ssl.cert
ssl_cipher_list = ALL:!LOW:!SSLv2
ssl_key = </etc/pki/tls/private/mail-server-ssl.key
userdb {
  args = /etc/dovecot/dovecot-mysql.conf
  driver = sql
}
userdb {
  driver = prefetch
}
protocol imap {
  imap_max_line_length = 65536
}
------------------
dovecot-mysql.conf
------------------
driver = mysql
connect = "host=127.0.0.1 dbname=virtual user=virt password=letmein
password_query = \
  SELECT userid AS user, password, \
    home AS userdb_home, uid AS userdb_uid, gid AS userdb_gid \
  FROM vusers WHERE userid = '%Ln' AND domain = '%Ld'
# For deliver lookups:
user_query = \
  SELECT home, uid, gid  FROM vusers  WHERE userid = '%Ln' AND domain
'%Ld'
# For using doveadm -A:
iterate_query = SELECT userid AS username, domain FROM users
------------------
dirs
------------------
ls -l /var/spool/postfix/private/
total 0
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 anvil
srw-rw---- 1 postfix postfix 0 Nov  2 03:27 auth
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 bounce
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 defer
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 discard
srw-rw-rw- 1 postfix postfix 0 Nov  1 07:46 dovecot
srw-rw---- 1 postfix postfix 0 Nov  2 03:27 dovecot-lmtp
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 error
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 lmtp
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 local
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 proxymap
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 proxywrite
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 relay
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 retry
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 rewrite
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 scache
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 smtp
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 smtp-amavis
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 tlsmgr
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 trace
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 verify
srw-rw-rw- 1 postfix postfix 0 Nov  1 16:18 virtual
ls -l /var/run/dovecot/
total 12
srw------- 1 root    root        0 Nov  2 03:27 anvil
srw------- 1 root    root        0 Nov  2 03:27 anvil-auth-penalty
srw------- 1 root    root        0 Nov  2 03:27 auth-client
srw------- 1 dovecot root        0 Nov  2 03:27 auth-login
srw------- 1 root    root        0 Nov  2 03:27 auth-master
srw------- 1 root    root        0 Nov  2 03:27 auth-userdb
srw------- 1 dovecot root        0 Nov  2 03:27 auth-worker
srw------- 1 root    root        0 Nov  2 03:27 config
srw------- 1 root    root        0 Nov  2 03:27 dict
srw------- 1 root    root        0 Nov  2 03:27 director-admin
srw-rw-rw- 1 root    root        0 Nov  2 03:27 dns-client
srw------- 1 root    root        0 Nov  2 03:27 doveadm-server
lrwxrwxrwx 1 root    root       25 Nov  2 03:27 dovecot.conf
-> /etc/dovecot/dovecot.conf
drwxr-xr-x 2 root    root     4096 Aug 25 08:12 empty
srw-rw-rw- 1 root    root        0 Nov  2 03:27 lmtp
drwxr-x--- 2 root    dovenull 4096 Nov  2 03:27 login
-rw------- 1 root    root        6 Nov  2 03:27 master.pid

A nudge into the right direction would be greatly appreciated.

Thanks

Daniel Luttermann

2010-Nov-02 10:26 UTC

head link

[Dovecot] Converting to 2.0 and LMTP have userdb and auth-worker complaints

Maple Thorpe wrote on 11/02/2010:
> Additional info:
> ------------------
> dovecot log messages
> ------------------
> Nov 02 03:27:39 master: Info: Dovecot v2.0.1 starting up (core dumps
> disabled)
> Nov 02 03:27:50 lmtp(17281): Debug: none: root=, index=, control=,
> inbox> Nov 02 03:27:50 lmtp(17281): Info: Connect from local
> Nov 02 03:27:50 auth: Fatal: net_connect_unix(auth-worker) failed:
> Permission denied
> Nov 02 03:27:50 lmtp(17281): Error: userdb lookup(john at homenet.lan):
> Disconnected unexpectedly
OK, you get a "permission denied" error...
> ------------------
> doveconf -n
> ------------------
> # 2.0.1: /etc/dovecot/dovecot.conf
> # OS: Linux 2.6.35.6-48.fc14.i686 i686 Fedora release 14 (Laughlin)
> auth_mechanisms = plain login cram-md5
> listen = *
> log_path = /var/log/dovecot.log
> mail_debug = yes
> mail_location = maildir:%h/Maildir/
> passdb {
>   args = /etc/dovecot/dovecot-mysql.conf
>   driver = sql
> }
> plugin {
>   trash = /etc/dovecot/trash.conf
> }
> protocols = imap lmtp
> service auth-worker {
>   group = postfix
>   user = postfix
> }
> service auth {
>   unix_listener /var/spool/postfix/private/auth {
>     group = postfix
>     mode = 0660
>     user = postfix
>   }
>   user = postfix
> }
Why do you use "group = postfix and "user = postfix" for the  
auth-worker? This user needs access to your password and user  
database. See:
http://wiki2.dovecot.org/UserIds

I mean the default user/group is "root".
> ls -l /var/run/dovecot/
> total 12
> srw------- 1 root    root        0 Nov  2 03:27 anvil
> srw------- 1 root    root        0 Nov  2 03:27 anvil-auth-penalty
> srw------- 1 root    root        0 Nov  2 03:27 auth-client
> srw------- 1 dovecot root        0 Nov  2 03:27 auth-login
> srw------- 1 root    root        0 Nov  2 03:27 auth-master
> srw------- 1 root    root        0 Nov  2 03:27 auth-userdb
> srw------- 1 dovecot root        0 Nov  2 03:27 auth-worker
> srw------- 1 root    root        0 Nov  2 03:27 config
> srw------- 1 root    root        0 Nov  2 03:27 dict
> srw------- 1 root    root        0 Nov  2 03:27 director-admin
> srw-rw-rw- 1 root    root        0 Nov  2 03:27 dns-client
> srw------- 1 root    root        0 Nov  2 03:27 doveadm-server
> lrwxrwxrwx 1 root    root       25 Nov  2 03:27 dovecot.conf
> -> /etc/dovecot/dovecot.conf
> drwxr-xr-x 2 root    root     4096 Aug 25 08:12 empty
> srw-rw-rw- 1 root    root        0 Nov  2 03:27 lmtp
> drwxr-x--- 2 root    dovenull 4096 Nov  2 03:27 login
> -rw------- 1 root    root        6 Nov  2 03:27 master.pid
Hmm, this is a bit curious because auth-worker runs as user "dovecot"
and group "root" but above you've set
"postfix/postfix"... Is the
socket "auth-worker" re-created with different permissions if you  
restart Dovecot? Have you tried to use the default permissions  
(root/root instead of postfix/postfix)?

--
Daniel

Maple Thorpe

2010-Nov-02 12:23 UTC

head link

[Dovecot] SPAM Re: Converting to 2.0 and LMTP have userdb and auth-worker complaints

On Tue, 2010-11-02 at 11:26 +0100, Daniel Luttermann
wrote:> Maple Thorpe wrote on 11/02/2010:
> 
> Why do you use "group = postfix and "user = postfix" for the
> auth-worker? This user needs access to your password and user  
> database. See:
> http://wiki2.dovecot.org/UserIds
> 
> --
> Daniel
> 
Thanks for the pointer.  I have been at the wiki for two days, thought I
had read every page (what seemed like a 100 times), but, somehow missed
UserIds.

Thanks again.

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