Re: [Dovecot] Connection refused userdb lookup ..dovecot/auth-userdb
On Thursday, March 13, 2014, Steffen Kaiser <skdovecot@smail.inf.fh-brs.de> wrote:
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On Thu, 13 Mar 2014, Simon wrote:
Ive taken a look at this and cant quite figure out what is going on here.
I have tested all the SQL permissions, and also changed the unix_listener auth-userdb mode to 0666 (as instructed elsewhere to try and solve this issue), but cannot seem to work out what the issue is.
what happens if you connect to that socket manually, e.g.:
# sudo -u <lda-user> socat - UNIX:/usr/local/dovecot/var/ run/dovecot/auth-userdb VERSION 1 1 SPID 1746
Maybe first try as root, then with the partucular users.
Thanks for the reply! I tried this as root and got the following:
[root@vmail1 ~]# socat - UNIX:/usr/local/dovecot/var/run/dovecot/auth-userdb 2014/03/16 20:57:05 socat[24404] E connect(3, AF=1 "/usr/local/dovecot/var/run/dovecot/auth-userdb", 48): Connection refused
Seems a bit wierd that I can't connect as root?
Simon
Hi All, Ive been googling the crap out of this but still cant seem to make it work.. any assistance would be really appreciated thanks! :)
Simon
On Sun, Mar 16, 2014 at 9:02 PM, Simon <greminn@gmail.com> wrote:
On Thursday, March 13, 2014, Steffen Kaiser <skdovecot@smail.inf.fh-brs.de> wrote:
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On Thu, 13 Mar 2014, Simon wrote:
Ive taken a look at this and cant quite figure out what is going on
here. I have tested all the SQL permissions, and also changed the unix_listener auth-userdb mode to 0666 (as instructed elsewhere to try and solve this issue), but cannot seem to work out what the issue is.
what happens if you connect to that socket manually, e.g.:
# sudo -u <lda-user> socat - UNIX:/usr/local/dovecot/var/ run/dovecot/auth-userdb VERSION 1 1 SPID 1746
Maybe first try as root, then with the partucular users.
Thanks for the reply! I tried this as root and got the following:
[root@vmail1 ~]# socat - UNIX:/usr/local/dovecot/var/run/dovecot/auth-userdb 2014/03/16 20:57:05 socat[24404] E connect(3, AF=1 "/usr/local/dovecot/var/run/dovecot/auth-userdb", 48): Connection refused
Seems a bit wierd that I can't connect as root?
Simon
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On Mon, 24 Mar 2014, Simon wrote:
Hi All, Ive been googling the crap out of this but still cant seem to make it work.. any assistance would be really appreciated thanks! :)
On Sun, Mar 16, 2014 at 9:02 PM, Simon <greminn@gmail.com> wrote:
On Thursday, March 13, 2014, Steffen Kaiser <skdovecot@smail.inf.fh-brs.de> wrote:
On Thu, 13 Mar 2014, Simon wrote:
Ive taken a look at this and cant quite figure out what is going on
here. I have tested all the SQL permissions, and also changed the unix_listener auth-userdb mode to 0666 (as instructed elsewhere to try and solve this issue), but cannot seem to work out what the issue is.
what happens if you connect to that socket manually, e.g.:
# sudo -u <lda-user> socat - UNIX:/usr/local/dovecot/var/ run/dovecot/auth-userdb VERSION 1 1 SPID 1746
Maybe first try as root, then with the partucular users.
Thanks for the reply! I tried this as root and got the following:
[root@vmail1 ~]# socat - UNIX:/usr/local/dovecot/var/run/dovecot/auth-userdb 2014/03/16 20:57:05 socat[24404] E connect(3, AF=1 "/usr/local/dovecot/var/run/dovecot/auth-userdb", 48): Connection refused
Seems a bit wierd that I can't connect as root?
Actually, "Connection refused" is not "Permission denied", I would say that:
a) Dovecot is not running, b) Dovecot is not configured to listen on that socket, c) Dovecot died when you've connect d) SELinux, AppArmor, ... prevent access -> but I would expect "Permission denied" in that cases, too
Check: lsof -c dovecot|grep auth-userdb dovecot 12600 root 56u unix 0xffff88003f94ed00 0t0 48261 /var/run/dovecot2.2/auth-userdb
Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux)
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On 03/24/2014 04:14 AM, Simon wrote:
On Sun, Mar 16, 2014 at 9:02 PM, Simon <greminn@gmail.com> wrote:
On Thursday, March 13, 2014, Steffen Kaiser <skdovecot@smail.inf.fh-brs.de> wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
On Thu, 13 Mar 2014, Simon wrote:
Ive taken a look at this and cant quite figure out what is going on
here. I have tested all the SQL permissions, and also changed the unix_listener auth-userdb mode to 0666 (as instructed elsewhere to try and solve this issue), but cannot seem to work out what the issue is.
what happens if you connect to that socket manually, e.g.:
# sudo -u <lda-user> socat - UNIX:/usr/local/dovecot/var/ run/dovecot/auth-userdb VERSION 1 1 SPID 1746
Maybe first try as root, then with the partucular users.
Thanks for the reply! I tried this as root and got the following:
[root@vmail1 ~]# socat - UNIX:/usr/local/dovecot/var/run/dovecot/auth-userdb 2014/03/16 20:57:05 socat[24404] E connect(3, AF=1 "/usr/local/dovecot/var/run/dovecot/auth-userdb", 48): Connection refused
Seems a bit wierd that I can't connect as root?
Hi All, Ive been googling the crap out of this but still cant seem to make it work.. any assistance would be really appreciated thanks! :)
Please don't top-post...
Some ideas:
- Show full output of 'doveconf -n'
- How do permissions of the socket look like? Show full output of 'ls -al /usr/local/dovecot/var/run/dovecot/'
- Do you use SElinux or some other access control system? Any output in syslog/kernel logging?
Tom
On Mon, Mar 24, 2014 at 9:10 PM, Tom Hendrikx <tom@whyscream.net> wrote:
[root@vmail1 ~]# socat -
UNIX:/usr/local/dovecot/var/run/dovecot/auth-userdb 2014/03/16 20:57:05 socat[24404] E connect(3, AF=1 "/usr/local/dovecot/var/run/dovecot/auth-userdb", 48): Connection refused
Seems a bit wierd that I can't connect as root?
Hi All, Ive been googling the crap out of this but still cant seem to make it work.. any assistance would be really appreciated thanks! :)
Please don't top-post...
Hi There, Sorry about that ;)
Some ideas:
- Show full output of 'doveconf -n'
- How do permissions of the socket look like? Show full output of 'ls -al /usr/local/dovecot/var/run/dovecot/'
- Do you use SElinux or some other access control system? Any output in syslog/kernel logging?
/etc/selinux/config was set to permissive, so i set to disabled. Apart from the mail.log output in my pastbin above - there is no more logging that i can find.
Thanks!
Simon
On 3/24/2014 3:55 PM, Simon <greminn@gmail.com> wrote:
Some ideas:
- Show full output of 'doveconf -n'
One more thing... please don't use pastebin... it breaks archives (eventually).
Just copy/paste the output directly into the email body (this goes for logs too)...
--
Best regards,
Charles
On Tue, Mar 25, 2014 at 9:00 AM, Charles Marcus <CMarcus@media-brokers.com>wrote:
One more thing... please don't use pastebin... it breaks archives (eventually).
Just copy/paste the output directly into the email body (this goes for logs too)...
Oh sorry :(
Mar 13 09:50:44 vmail1 postfix/pipe[31090]: 5D4FFA1057: to=< account1@thedomainname.com>, relay=dovecot, delay=135007, delays=135006/0.03/0/1, dsn=4.3.0, status=deferred (temporary failure) Mar 13 09:55:43 vmail1 postfix/qmgr[1486]: 5220B9FE50: from=< account2@thedomainname.com, size=2787, nrcpt=1 (queue active) Mar 13 09:55:43 vmail1 dovecot: lda: Debug: Loading modules from directory: /usr/local/dovecot/lib/dovecot Mar 13 09:55:43 vmail1 dovecot: lda: Debug: Module loaded: /usr/local/dovecot/lib/dovecot/lib10_quota_plugin.so Mar 13 09:55:43 vmail1 dovecot: lda: Debug: Module loaded: /usr/local/dovecot/lib/dovecot/lib90_sieve_plugin.so Mar 13 09:55:44 vmail1 dovecot: lda: Error: userdb lookup: connect(/usr/local/dovecot/var/run/dovecot/auth-userdb) failed: Connection refused Mar 13 09:55:44 vmail1 dovecot: lda: Fatal: Internal error occurred. Refer to server log for more information. Mar 13 09:55:44 vmail1 postfix/pipe[31212]: 5220B9FE50: to=< account1@thedomainname.com>, relay=dovecot, delay=136173, delays=136171/0.03/0/1.1, dsn=4.3.0, status=deferred (temporary failure)
[root@vmail1 vmail]# dovecot -n # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-431.el6.centos.plus.x86_64 x86_64 CentOS release 6.5 (Final) xfs auth_debug = yes auth_debug_passwords = yes auth_mechanisms = plain login digest-md5 cram-md5 auth_verbose = yes debug_log_path = /var/log/dovecot.log mail_debug = yes mail_location = maildir:/var/vmail/%d/%n/Maildir mbox_write_locks = fcntl passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { quota = maildir:User quota quota_rule = *:storage=512M quota_rule2 = Trash:storage=+10%% quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=50%% quota-warning 50 %u } service auth { unix_listener auth-userdb { group = vmail mode = 0666 user = vmail } } service quota-warning { executable = script /var/vmail/quota-warning.sh unix_listener quota-warning { user = vmail } user = dovecot } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lda { mail_plugins = quota } protocol imap { mail_plugins = quota imap_quota ssl_cert = </etc/ssl/dovecot/imap.pem ssl_key = </etc/ssl/dovecot/imap.pem } protocol pop3 { mail_plugins = quota ssl_cert = </etc/ssl/dovecot/pop.pem ssl_key = </etc/ssl/dovecot/pop.pem }
# ls -al total 28 drwxr-xr-x. 5 root root 4096 Aug 17 2013 . drwxr-xr-x. 3 root root 4096 Jul 13 2013 .. srw-------. 1 root root 0 Jul 18 2013 anvil srw-------. 1 root root 0 Jul 18 2013 anvil-auth-penalty srw-------. 1 root root 0 Jul 18 2013 auth-client srw-------. 1 dovecot root 0 Jul 18 2013 auth-login srw-------. 1 root root 0 Jul 18 2013 auth-master -rw-------. 1 root root 32 Jul 13 2013 auth-token-secret.dat srwxrwxrwx. 1 vmail vmail 0 Jul 18 2013 auth-userdb srw-------. 1 dovecot root 0 Jul 18 2013 auth-worker srw-------. 1 root root 0 Jul 18 2013 config srwxrwxrwx. 1 vmail vmail 0 Jul 18 2013 dict srw-------. 1 root root 0 Jul 18 2013 director-admin srw-------. 1 root root 0 Jul 18 2013 director-userdb srw-rw-rw-. 1 root root 0 Jul 18 2013 dns-client srw-------. 1 root root 0 Jul 18 2013 doveadm-server lrwxrwxrwx. 1 root root 43 Jul 18 2013 dovecot.conf -> /usr/local/dovecot/etc/dovecot/dovecot.conf drwxr-xr-x. 2 root root 4096 Jul 13 2013 empty srw-rw-rw-. 1 root root 0 Jul 18 2013 imap-urlauth srw-------. 1 dovecot root 0 Jul 18 2013 imap-urlauth-worker srw-rw-rw-. 1 root root 0 Jul 18 2013 indexer srw-------. 1 dovecot root 0 Jul 18 2013 indexer-worker srw-------. 1 root root 0 Jul 18 2013 ipc srw-------. 1 root root 0 Jul 18 2013 log-errors drwxr-x---. 2 root dovenull 4096 Jul 18 2013 login -rw-r--r--. 1 root root 40 Jul 18 2013 mounts srw-------. 1 vmail root 0 Jul 18 2013 quota-warning srw-------. 1 root root 0 Jul 18 2013 replication-notify prw-------. 1 root root 0 Jul 18 2013 replication-notify-fifo srw-------. 1 dovecot root 0 Jul 18 2013 replicator srw-rw-rw-. 1 root root 0 Jul 18 2013 ssl-params srw-------. 1 root root 0 Jul 18 2013 stats prw-------. 1 root root 0 Jul 18 2013 stats-mail drwxr-x---. 2 root dovenull 4096 Jul 18 2013 token-login
On 3/24/2014 7:10 PM, Simon <greminn@gmail.com> wrote:
Mar 13 09:55:44 vmail1 dovecot: lda: Error: userdb lookup: connect(/usr/local/dovecot/var/run/dovecot/auth-userdb) failed: Connection refused
So, your SQL userdb is refusing connections from dovecot...
Fix this...
--
Best regards,
Charles
On Wed, Mar 26, 2014 at 12:15 AM, Charles Marcus <CMarcus@media-brokers.com>wrote:
On 3/24/2014 7:10 PM, Simon <greminn@gmail.com> wrote:
Mar 13 09:55:44 vmail1 dovecot: lda: Error: userdb lookup: connect(/usr/local/dovecot/var/run/dovecot/auth-userdb) failed: Connection refused
So, your SQL userdb is refusing connections from dovecot...
Fix this...
Thanks Charles, I have looked into this and tried to fix permissions but still have the same issue. I have tried changing the permissions on the auth-userdb to 0666 (see below) as well as setting the permissions of /usr/local/dovecot/var/run/dovecot/ to 777 just for testing.. but still get the same error (also below). I feel im barking up the wrong tree here in terms of what i need todo to fix the issue... but cant see the wood for the tress here :) Would i be able to ask you to outline in basic how i go about fixing this?
service auth { unix_listener auth-userdb { mode = 0667 user = vmail group = vmail } }
Mar 26 09:01:43 vmail1 dovecot: lda: Error: userdb lookup: connect(/usr/local/dovecot/var/run/dovecot/auth-userdb) failed: Connection refused Mar 26 09:01:43 vmail1 dovecot: lda: Fatal: Internal error occurred. Refer to server log for more information.
Many thanks!
Simon
On 3/25/2014 4:08 PM, Simon <greminn@gmail.com> wrote:
On Wed, Mar 26, 2014 at 12:15 AM, Charles Marcus <CMarcus@media-brokers.com>wrote:
On 3/24/2014 7:10 PM, Simon <greminn@gmail.com> wrote:
Mar 13 09:55:44 vmail1 dovecot: lda: Error: userdb lookup: connect(/usr/local/dovecot/var/run/dovecot/auth-userdb) failed: Connection refused
So, your SQL userdb is refusing connections from dovecot...
Fix this...
Thanks Charles, I have looked into this and tried to fix permissions but still have the same issue. I have tried changing the permissions on the auth-userdb to 0666 (see below) as well as setting the permissions of /usr/local/dovecot/var/run/dovecot/ to 777 just for testing.
You misunderstood...
I didn't say the filesystem permissions were wrong.
Your SQL SERVER is refusing the connection.
The user (vmail) you are using to connect to the SQL server doesn't have permission to talk to it.
This needs to be fixed IN THE SQL SERVER ACCESS PERMISSIONS for the 'vmail' user.
--
Best regards,
Charles
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On 26-03-14 12:01, Charles Marcus wrote:
On 3/25/2014 4:08 PM, Simon <greminn@gmail.com> wrote:
On Wed, Mar 26, 2014 at 12:15 AM, Charles Marcus <CMarcus@media-brokers.com>wrote:
On 3/24/2014 7:10 PM, Simon <greminn@gmail.com> wrote:
Mar 13 09:55:44 vmail1 dovecot: lda: Error: userdb lookup: connect(/usr/local/dovecot/var/run/dovecot/auth-userdb) failed: Connection refused
So, your SQL userdb is refusing connections from dovecot...
Fix this...
Thanks Charles, I have looked into this and tried to fix permissions but still have the same issue. I have tried changing the permissions on the auth-userdb to 0666 (see below) as well as setting the permissions of /usr/local/dovecot/var/run/dovecot/ to 777 just for testing.
You misunderstood...
I didn't say the filesystem permissions were wrong.
Your SQL SERVER is refusing the connection.
The user (vmail) you are using to connect to the SQL server doesn't have permission to talk to it.
This needs to be fixed IN THE SQL SERVER ACCESS PERMISSIONS for the 'vmail' user.
Charles, auth-worker would have logged errors about sql access if that was an issue. lda doesn't do sql queries by itself, it sends the queries to the auth socket instead, and that fails.
The socket is not usable, as was already observed upthread by doing tests as root using socat. I'm still opting for selinux/apparmor/rsbac/etc issues here.
Simon, are you sure you're not missing any logging on that? I'm not really experienced in thoose systems, but everytime I run into issues with them , they sure fill my logs with all kinds of cryptic stuff ;)
Tom -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
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On Thu, Mar 27, 2014 at 5:16 PM, Tom Hendrikx <tom@whyscream.net> wrote:
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On 26-03-14 12:01, Charles Marcus wrote:
On 3/25/2014 4:08 PM, Simon <greminn@gmail.com> wrote:
On Wed, Mar 26, 2014 at 12:15 AM, Charles Marcus <CMarcus@media-brokers.com>wrote:
On 3/24/2014 7:10 PM, Simon <greminn@gmail.com> wrote:
Mar 13 09:55:44 vmail1 dovecot: lda: Error: userdb lookup: connect(/usr/local/dovecot/var/run/dovecot/auth-userdb) failed: Connection refused
So, your SQL userdb is refusing connections from dovecot...
Fix this...
Thanks Charles, I have looked into this and tried to fix permissions but still have the same issue. I have tried changing the permissions on the auth-userdb to 0666 (see below) as well as setting the permissions of /usr/local/dovecot/var/run/dovecot/ to 777 just for testing.
You misunderstood...
I didn't say the filesystem permissions were wrong.
Your SQL SERVER is refusing the connection.
The user (vmail) you are using to connect to the SQL server doesn't have permission to talk to it.
This needs to be fixed IN THE SQL SERVER ACCESS PERMISSIONS for the 'vmail' user.
Charles, auth-worker would have logged errors about sql access if that was an issue. lda doesn't do sql queries by itself, it sends the queries to the auth socket instead, and that fails.
I agree here.. Charles im my email i mentioned that i understood you were talking about SQL permissions, i have tested this and the user can connect and perform all SQL queries. This is what i did to test this:
[root@vmail1 ~]# su vmail [vmail@vmail1 root]$ mysql -u DBUSER -pDBPASS -h DBHOST
mysql> use DBNAME; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A
Database changed mysql> SELECT CONCAT('/var/vmail/',CONCAT(SUBSTRING_INDEX(email,'@',-1),'/',SUBSTRING_INDEX(email,'@',1))) AS home, 5000 AS uid, 5000 AS gid, CONCAT('*:storage=',quota) AS quota_rule FROM mail_users WHERE email='test@testdomain.co.nz'; +--------------------------------+------+------+------------------+ | home | uid | gid | quota_rule | +--------------------------------+------+------+------------------+ | /var/vmail/testdomain.co.nz/test | 5000 | 5000 | *:storage=1000MB | +--------------------------------+------+------+------------------+ 1 row in set (0.02 sec)
mysql> SELECT email as user, password FROM mail_users WHERE email=' test@testdomain.co.nz'; +---------------------+----------+ | user | password | +---------------------+----------+ | test@testdomain.co.nz | THEPASSWORD | +---------------------+----------+ 1 row in set (0.00 sec)
mysql> exit
The socket is not usable, as was already observed upthread by doing tests as root using socat. I'm still opting for selinux/apparmor/rsbac/etc issues here.
I have disabled selinux completely "SELINUX=disabled" in /etc/selinux/config :)
Simon, are you sure you're not missing any logging on that? I'm not really experienced in thoose systems, but everytime I run into issues with them , they sure fill my logs with all kinds of cryptic stuff ;)
I have checked with this and this is the only logging i can see on the issue (out of all logs in /var/log/)
Mar 31 11:32:31 vmail1 dovecot: lda: Debug: Loading modules from directory: /usr/local/dovecot/lib/dovecot Mar 31 11:32:31 vmail1 dovecot: lda: Debug: Module loaded: /usr/local/dovecot/lib/dovecot/lib10_quota_plugin.so Mar 31 11:32:31 vmail1 dovecot: lda: Debug: Module loaded: /usr/local/dovecot/lib/dovecot/lib90_sieve_plugin.so Mar 31 11:32:32 vmail1 dovecot: lda: Error: userdb lookup: connect(/usr/local/dovecot/var/run/dovecot/auth-userdb) failed: Connection refused Mar 31 11:32:32 vmail1 dovecot: lda: Fatal: Internal error occurred. Refer to server log for more information.
Simon
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On Mon, 31 Mar 2014, Simon wrote:
On 3/24/2014 7:10 PM, Simon <greminn@gmail.com> wrote:
Mar 13 09:55:44 vmail1 dovecot: lda: Error: userdb lookup: connect(/usr/local/dovecot/var/run/dovecot/auth-userdb) failed: Connection refused
What's the output of:
lsof -c dovecot|grep auth-userdb
?
Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux)
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participants (4)
-
Charles Marcus
-
Simon
-
Steffen Kaiser
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Tom Hendrikx