forum.excito.org

Posted: **29 Nov 2010, 11:03**

Hi,

Been configuring a B3 for email access for local machines connecting Thunderbird clients, but also using a FQDN to point to the B3 for external access when the users are at home - that way email works from anywhere.

Have had clients setup locally using the internal domain name:

main-bubba

Then setup a DNS entry to point a FQDN to the B3's external facing IP address which worked and I can log on from anywhere and checked email through the webmail interface.

Now this is where the problems started, I wanted to create an Self Signed Certificate to install on the machines, so as root I did:

Edited /etc/hosts file to contain the following entry at the top:
IP ADDRESS my.domain.name

Then I removed the old certificates:

Code: Select all

find /etc/ssl -name dovecot.* -exec rm {} \;

Then to create new ones:

Code: Select all

dpkg-reconfigure dovecot-common

Now, it seems ever since I have done that I am unable to log into the Horde webmail client and the Thunderbird clients are getting an error that the "Connection Refused" - I can log into the web interface for the B3 with the usernames and passwords for any other area but just not mail, file sharing works fine. That's why I think it is horde or dovecot?

Below is the extract from the Horde log:

root@main-bubba:/var/log/horde# cat horde3.log
Nov 29 15:34:43 HORDE [error] [imp] FAILED LOGIN for USERNAME [IPADDRESS] to {localhost:143 [imap/notls]} [pid 1563 on line 139 of "/usr/share/horde3/imp/lib/Auth/imp.php"]
Nov 29 15:34:59 HORDE [error] [imp] FAILED LOGIN for USERNAME [IPADDRESS] to {localhost:143 [imap/notls]} [pid 1362 on line 139 of "/usr/share/horde3/imp/lib/Auth/imp.php"]
Nov 29 15:36:19 HORDE [error] [imp] FAILED LOGIN for USERNAME [IPADDRESS] to {localhost:143 [imap/notls]} [pid 2477 on line 139 of "/usr/share/horde3/imp/lib/Auth/imp.php"]
Nov 29 15:38:30 HORDE [error] [imp] FAILED LOGIN for USERNAME [IPADDRESS] to {localhost:143 [imap/notls]} [pid 2478 on line 139 of "/usr/share/horde3/imp/lib/Auth/imp.php"]
root@main-bubba:/var/log/horde#

I've tried looking for a Dovecot log but cannot locate this?

I've also restarted the B3 and still the same issue, also I have restarted Dovecot through the SSH login:

Code: Select all

/etc/init.d/dovecot restart

Any help is very much appreciated

Posted: **29 Nov 2010, 11:20**

You should be able to see the start/stop messages of dovecot in /var/log/mail.log

Tip for next time: don't delete certificates, rename them to .old or something, that way you can put it back when the new certificate doesn't work.

Have you tried

c_rehash /etc/ssl/certs

Albert

Posted: **29 Nov 2010, 11:46**

Have just tried

c_rehash /etc/ssl/certs

Still no joy.

Results from what I can find in mail.log:

Nov 29 15:16:33 main-bubba dovecot: Killed with signal 15 (by pid=3101 uid=0 code=kill)
Nov 29 15:16:34 main-bubba postfix/master[1582]: terminating on signal 15
Nov 29 15:16:38 main-bubba fetchmail[1067]: terminated with signal 15
Nov 29 15:17:03 main-bubba fetchmail[1101]: starting fetchmail 6.3.17 daemon
Nov 29 15:17:04 main-bubba fetchmail[1101]: couldn't find canonical DNS name of MAILSERVER (MAILSERVER): Name or service not known
Nov 29 15:17:04 main-bubba fetchmail[1101]: Query status=11 (DNS)
Nov 29 15:17:04 main-bubba fetchmail[1101]: getaddrinfo("MAILSERVER","imap") error: Name or service not known
Nov 29 15:17:04 main-bubba fetchmail[1101]: IMAP connection to MAILSERVER failed: Connection refused
Nov 29 15:17:04 main-bubba fetchmail[1101]: Query status=2 (SOCKET)
Nov 29 15:17:04 main-bubba fetchmail[1101]: couldn't find canonical DNS name of MAILSERVER (MAILSERVER): Name or service not known
Nov 29 15:17:04 main-bubba fetchmail[1101]: Query status=11 (DNS)
Nov 29 15:17:04 main-bubba fetchmail[1101]: getaddrinfo("MAILSERVER","pop3") error: Name or service not known
Nov 29 15:17:04 main-bubba fetchmail[1101]: POP3 connection to MAILSERVER failed: Connection refused
Nov 29 15:17:04 main-bubba fetchmail[1101]: Query status=2 (SOCKET)
Nov 29 15:17:23 main-bubba postfix/master[1699]: daemon started -- version 2.7.1, configuration /etc/postfix
Nov 29 15:17:24 main-bubba postfix/qmgr[1707]: 3CFF92D612: from=<[email protected]>, size=4516, nrcpt=1 (queue active)
Nov 29 15:17:24 main-bubba dovecot: Dovecot v1.2.13 starting up (core dumps disabled)
Nov 29 15:17:24 main-bubba postfix/qmgr[1707]: B990A2D085: from=<[email protected]>, size=4516, nrcpt=1 (queue active)
Nov 29 15:17:27 main-bubba postfix/master[1699]: reload -- version 2.7.1, configuration /etc/postfix
Nov 29 15:17:27 main-bubba postfix/qmgr[1831]: B990A2D085: skipped, still being delivered
Nov 29 15:17:27 main-bubba postfix/qmgr[1831]: 3CFF92D612: skipped, still being delivered
Nov 29 15:17:27 main-bubba postfix/qmgr[1831]: B990A2D085: skipped, still being delivered
Nov 29 15:17:27 main-bubba postfix/qmgr[1831]: 0240C2D16F: from=<[email protected]>, size=4516, nrcpt=1 (queue active)
Nov 29 15:17:27 main-bubba postfix/qmgr[1831]: 3CFF92D612: skipped, still being delivered

I have done a netstat and the following results:

Code: Select all

root@main-bubba:/home/main-user# netstat -anp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:49152           0.0.0.0:*               LISTEN      1739/mediatomb
tcp        0      0 0.0.0.0:548             0.0.0.0:*               LISTEN      1150/afpd
tcp        0      0 0.0.0.0:3689            0.0.0.0:*               LISTEN      1131/mt-daapd
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN      1349/mysqld
tcp        0      0 192.168.1.100:139       0.0.0.0:*               LISTEN      1535/smbd
tcp        0      0 0.0.0.0:10000           0.0.0.0:*               LISTEN      1085/ftd
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1808/sshd
tcp        0      0 0.0.0.0:631             0.0.0.0:*               LISTEN      1056/cupsd
tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN      1699/master
tcp        0      0 192.168.1.100:445       0.0.0.0:*               LISTEN      1535/smbd
tcp        0      0 192.168.1.100:445       192.168.1.82:2053       ESTABLISHED 1935/smbd
tcp        0     52 192.168.1.100:22        192.168.1.86:52669      ESTABLISHED 3283/sshd: main-use
tcp        0      0 192.168.1.100:22        192.168.1.86:52658      ESTABLISHED 3264/sshd: main-use
tcp        0      0 192.168.1.100:445       192.168.1.86:51794      ESTABLISHED 1588/smbd
tcp6       0      0 fe80::222:2ff:fe00::139 :::*                    LISTEN      1535/smbd
tcp6       0      0 :::10000                :::*                    LISTEN      1085/ftd
tcp6       0      0 :::80                   :::*                    LISTEN      1001/apache2
tcp6       0      0 :::21                   :::*                    LISTEN      1268/proftpd: (acce
tcp6       0      0 :::22                   :::*                    LISTEN      1808/sshd
tcp6       0      0 :::631                  :::*                    LISTEN      1056/cupsd
tcp6       0      0 :::443                  :::*                    LISTEN      1001/apache2
tcp6       0      0 fe80::222:2ff:fe00::445 :::*                    LISTEN      1535/smbd
udp        0      0 0.0.0.0:68              0.0.0.0:*                           1536/dhclient
udp        0      0 0.0.0.0:36685           0.0.0.0:*                           1037/avahi-daemon:
udp        0      0 127.0.0.1:36942         0.0.0.0:*                           1739/mediatomb
udp        0      0 0.0.0.0:1900            0.0.0.0:*                           1739/mediatomb
udp        0      0 0.0.0.0:631             0.0.0.0:*                           1056/cupsd
udp        0      0 192.168.1.100:123       0.0.0.0:*                           1159/ntpd
udp        0      0 127.0.0.1:123           0.0.0.0:*                           1159/ntpd
udp        0      0 0.0.0.0:123             0.0.0.0:*                           1159/ntpd
udp        0      0 192.168.1.100:137       0.0.0.0:*                           1529/nmbd
udp        0      0 0.0.0.0:137             0.0.0.0:*                           1529/nmbd
udp        0      0 192.168.1.100:138       0.0.0.0:*                           1529/nmbd
udp        0      0 0.0.0.0:138             0.0.0.0:*                           1529/nmbd
udp        0      0 0.0.0.0:5353            0.0.0.0:*                           1037/avahi-daemon:
udp6       0      0 :::58393                :::*                                1037/avahi-daemon:
udp6       0      0 fe80::222:2ff:fe00::123 :::*                                1159/ntpd
udp6       0      0 ::1:123                 :::*                                1159/ntpd
udp6       0      0 :::123                  :::*                                1159/ntpd
udp6       0      0 :::5353                 :::*                                1037/avahi-daemon:

It appears to me that dovecot is not listening on any port or even running correctly?

Posted: **29 Nov 2010, 13:44**

ok you used netstat and found your IMAP server is not working. That narrows it down. So:

1) did you check if the SSL certs that you deleted were remade and now actually exist?

2) did you read the error that dovecot gave you when you restarted the package?

3) add this to your /etc/dovecot/dovecot.conf

Code: Select all

log_path = /tmp/dovecot.log
info_log_path = /tmp/dovecot-info.log
verbose_ssl = yes
auth_verbose = yes
auth_debug=yes
auth_debug_passwords = yes
mail_debug=yes

restart, test the dovecot connection by telnetting to port 110, 143 and 993 and read the two logfiles. Don't just skim over them. Don't forget to remove them when stuff works again.

4) read http://wiki.dovecot.org/WhyDoesItNotWork

and 5) fix that MAILSERVER error first so you don't get confused

Posted: **29 Nov 2010, 14:02**

Great thanks Ubi,

I've fixed the MAILSERVER error so will check on with the other points. Will update as I make progress.

Posted: **29 Nov 2010, 15:32**

Ok, so I checked to see if the new certs had been created, and there is a dovecot.pem

Point 2) I was unable to find anything relating to an error from dovecot, only what I've posted before (I can check logs if you know of any)

I was going to edit the dovecot.conf file but I checked the login and found this error on the main login page:

A PHP Error was encountered
Severity: Warning
Message: Unknown: write failed: No space left on device (28)
Filename: Unknown
Line Number: 0

A PHP Error was encountered
Severity: Warning
Message: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (0;660;/var/lib/php5)
Filename: Unknown
Line Number: 0

I'm getting lost as to what is going on - the only changes that had been made were to remove the old certs and re-create them as I mentioned before??

Where it says No Space left on device, I have done:

du -Sx / | sort -nr | less

And found that:

/var/log was by far the biggest directory and inside here, this is what I have found:

root@main-bubba:/home/main-user# cd /var/log
root@main-bubba:/var/log# ls
apache2 cups debug.3.gz fsck mail.err.1 mail.log.2.gz messages.1 mysql.log.4.gz squeezecenter user.log
apt daemon.log dmesg horde mail.err.2.gz mail.log.3.gz messages.2.gz mysql.log.5.gz syslog user.log.1
auth.log daemon.log.1 dmesg.0 kern.log mail.err.3.gz mail.log.save messages.3.gz mysql.log.6.gz syslog.1 user.log.2.gz
auth.log.1 daemon.log.2.gz dmesg.1.gz kern.log.1 mail.info mail.warn mysql mysql.log.7.gz syslog.2.gz user.log.3.gz
auth.log.2.gz daemon.log.3.gz dmesg.2.gz kern.log.2.gz mail.info.1 mail.warn.1 mysql.err news syslog.3.gz web-admin
auth.log.3.gz dbconfig-common dmesg.3.gz kern.log.3.gz mail.info.2.gz mail.warn.2.gz mysql.log ntpstats syslog.4.gz wtmp
boot debug dmesg.4.gz lastlog mail.info.3.gz mail.warn.3.gz mysql.log.1.gz proftpd syslog.5.gz
bootstrap.log debug.1 dpkg.log lpr.log mail.log mediatomb.log mysql.log.2.gz pycentral.log syslog.6.gz
btmp debug.2.gz faillog mail.err mail.log.1 messages mysql.log.3.gz samba syslog.7.gz

I've removed some of the .gz files but wanted to post here before I went any further?

I've made the changes to the dovecot.conf file to now log, but I am unable to log onto the web interface to restart it, whats the safest way to reboot from the SSH login?

Thanks in advance

Posted: **29 Nov 2010, 15:39**

no space on which device? df -h

so it seems one partition is completely full. That's really bad. I'm pretty sure there's more in the /var/ than just those few logfiles. For me /var is only 220MB. You should have at least 5GB available on the root partition on a B3

what happens when you type "mailq" in the shell?

you can reboot by entering "reboot" in the shell.

Posted: **29 Nov 2010, 15:49**

Sorry, I thought I included the output of

Code: Select all

df -h

it is:

Code: Select all

root@main-bubba:/home/main-user# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1             9.9G  9.9G     0 100% /
tmpfs                 252M     0  252M   0% /lib/init/rw
udev                   10M  136K  9.9M   2% /dev
tmpfs                 252M  4.0K  252M   1% /dev/shm
/dev/mapper/bubba-storage
                      1.8T  1.2G  1.7T   1% /home

I'm pretty sure its not good news to have /dev/sda1 100% full but I have no idea why this is happening?

mailq brings the following results - (Again I don't know what is generating these MAILER-DAEMON's :

C598D2D281 4516 Fri Nov 26 11:30:02 [email protected]
[email protected]

C145A2CDBE 6667 Sat Nov 27 05:46:15 MAILER-DAEMON
[email protected]

C090C2D534 4516 Sun Nov 28 20:45:03 [email protected]
[email protected]

C838C2D5C4 4516 Mon Nov 29 08:45:02 [email protected]
[email protected]

C8D212D410 4516 Sat Nov 27 20:30:03 [email protected]
[email protected]

C59FC2D187 4516 Thu Nov 25 14:50:02 [email protected]
[email protected]

C59902D2FD 4516 Fri Nov 26 21:35:02 [email protected]
[email protected]

CB87F2D227 6667 Fri Nov 26 04:06:08 MAILER-DAEMON
[email protected]

C95A32D580 4516 Mon Nov 29 03:05:03 [email protected]
[email protected]

C463C2CD79 6667 Sat Nov 27 02:16:14 MAILER-DAEMON
[email protected]

C6CF42CEEC 6667 Sun Nov 28 06:16:10 MAILER-DAEMON
[email protected]

CF6B82CD17 4516 Fri Nov 26 16:40:02 [email protected]
[email protected]

C45962CB49 6667 Thu Nov 25 01:28:28 MAILER-DAEMON
[email protected]

CFC4A2CFC4 6667 Mon Nov 29 00:56:10 MAILER-DAEMON
[email protected]

C3EC12D1AF 4516 Thu Nov 25 18:05:03 [email protected]
[email protected]

CCE6C2CF85 4516 Sun Nov 28 19:20:02 [email protected]
[email protected]

CBB8A2CB98 6667 Thu Nov 25 07:18:31 MAILER-DAEMON
[email protected]

CDEEE2CE44 6667 Sat Nov 27 16:16:07 MAILER-DAEMON
[email protected]

C1EBB2CBC5 6667 Thu Nov 25 10:48:34 MAILER-DAEMON
[email protected]

C464D2CBBB 4516 Thu Nov 25 10:50:02 [email protected]
[email protected]

C6DE82D3FB 6667 Sat Nov 27 18:36:11 MAILER-DAEMON
[email protected]

C163A2CF70 6667 Sun Nov 28 21:26:10 MAILER-DAEMON
[email protected]

C5AA02D062 4516 Mon Nov 29 13:50:02 [email protected]
[email protected]

C19662CB24 4516 Wed Nov 24 22:00:03 [email protected]
[email protected]

C1A1F2CF0D 6667 Sun Nov 28 09:46:10 MAILER-DAEMON
[email protected]

CBA9C2CFB0 6667 Sun Nov 28 23:46:07 MAILER-DAEMON
[email protected]

C34112CD5A 6667 Fri Nov 26 21:36:09 MAILER-DAEMON
[email protected]

C31832D4D9 4516 Sun Nov 28 13:10:02 [email protected]
[email protected]

CF4C32CD44 6667 Fri Nov 26 19:16:12 MAILER-DAEMON
[email protected]

CF6902D265 4516 Fri Nov 26 14:50:02 [email protected]
[email protected]

C67612CE3B 6667 Sat Nov 27 16:16:13 MAILER-DAEMON
[email protected]

CA74D2D525 4516 Sun Nov 28 19:35:02 [email protected]
[email protected]

CCE042D2FA 4516 Fri Nov 26 21:20:02 [email protected]
[email protected]

C38182CC79 6667 Fri Nov 26 01:46:13 MAILER-DAEMON
[email protected]

C5B472D3B1 4516 Sat Nov 27 12:40:02 [email protected]
[email protected]

C0C002D270 4516 Fri Nov 26 10:15:02 [email protected]
[email protected]

CA6C82D4A0 4516 Sun Nov 28 08:25:02 [email protected]
[email protected]

C07502CEBE 6667 Sun Nov 28 02:46:13 MAILER-DAEMON
[email protected]

CDCEC2D0FF 4516 Thu Nov 25 02:55:03 [email protected]
[email protected]

C59A42D2D8 4516 Fri Nov 26 18:30:03 [email protected]
[email protected]

C0A752D4F9 4516 Sun Nov 28 15:45:02 [email protected]
[email protected]

C31E02CC92 6667 Fri Nov 26 04:06:12 MAILER-DAEMON
[email protected]

CD8FC2CCC6 6667 Fri Nov 26 08:46:09 MAILER-DAEMON
[email protected]

CF5A02CDE4 4516 Sat Nov 27 08:20:02 [email protected]
[email protected]

C67CA2CBA1 6667 Thu Nov 25 08:28:37 MAILER-DAEMON
[email protected]

C58C12D0C7 4516 Wed Nov 24 22:15:02 [email protected]
[email protected]

C914B2CD49 6667 Fri Nov 26 19:16:13 MAILER-DAEMON
[email protected]

C511F2CBB6 6667 Thu Nov 25 09:38:35 MAILER-DAEMON
[email protected]

C0C142D570 4516 Mon Nov 29 01:40:02 [email protected]
[email protected]

CB5F22D4C2 6667 Sun Nov 28 10:56:09 MAILER-DAEMON
[email protected]

CA8032D335 4516 Sat Nov 27 02:15:02 [email protected]
[email protected]

C43952CF78 6667 Sun Nov 28 17:56:09 MAILER-DAEMON
[email protected]

775062CC4C 6667 Mon Nov 29 14:16:33 MAILER-DAEMON
[email protected]

78F2C2D619 4516 Mon Nov 29 15:30:06 [email protected]
[email protected]

58A362D086 4516 Mon Nov 29 17:40:07 [email protected]
[email protected]

56BDC2D075 4516 Mon Nov 29 17:10:06 [email protected]
[email protected]

1366F2D087 4516 Mon Nov 29 16:40:06 [email protected]
[email protected]

1E13D2D0A0 4516 Mon Nov 29 18:30:07 [email protected]
[email protected]

1DFEF2D071 4516 Mon Nov 29 14:25:02 [email protected]
[email protected]

A72D32D5FB 4516 Mon Nov 29 14:50:03 [email protected]
[email protected]

30CB02D629 4516 Mon Nov 29 18:45:06 [email protected]
[email protected]

337AF2D06F 4516 Mon Nov 29 14:20:04 [email protected]
[email protected]

3CFF92D612 4516 Mon Nov 29 15:05:03 [email protected]
[email protected]

3AA622D04A 4516 Mon Nov 29 14:40:03 [email protected]
[email protected]

BC9D12D097 4516 Mon Nov 29 18:25:06 [email protected]
[email protected]

B990A2D085 4516 Mon Nov 29 14:45:02 [email protected]
[email protected]

B00232D60E 4516 Mon Nov 29 15:00:02 [email protected]
[email protected]

BAE3C2D620 4516 Mon Nov 29 16:00:06 [email protected]
[email protected]

B1FFD2D60C 4516 Mon Nov 29 14:15:02 [email protected]
[email protected]

B4FBD2CCE5 6667 Mon Nov 29 14:16:34 MAILER-DAEMON
[email protected]

B9FA92D094 4516 Mon Nov 29 18:10:06 [email protected]
[email protected]

404742D624 4516 Mon Nov 29 17:15:06 [email protected]
[email protected]

40C772CC53 6667 Mon Nov 29 14:16:34 MAILER-DAEMON
[email protected]

403352CEEE 6667 Mon Nov 29 14:16:37 MAILER-DAEMON
[email protected]

4F0DF2D611 4516 Mon Nov 29 16:15:06 [email protected]
[email protected]

4C79F2D621 4516 Mon Nov 29 16:05:06 [email protected]
[email protected]

6178D2D625 4516 Mon Nov 29 17:20:06 [email protected]
[email protected]

8D6882D06B 4516 Mon Nov 29 16:10:06 [email protected]
[email protected]

8E4B12D089 4516 Mon Nov 29 16:50:07 [email protected]
[email protected]

D4DF02D28A 4516 Mon Nov 29 18:35:05 [email protected]
[email protected]

D22922D052 6667 Mon Nov 29 14:16:42 MAILER-DAEMON
[email protected]

-- 16382 Kbytes in 2883 Requests.
root@main-bubba:~#

Posted: **29 Nov 2010, 15:56**

my /var/log directory is 8.8GB!!!

Just checked it - just trying to find out what is causing it, then will do a reboot.

Posted: **29 Nov 2010, 16:09**

you can remove the mail messages with "postsuper -d ALL" but that won't do much.

mind you the log files that are filling up can be in a subdir of /var/log (such as /var/log/apache!)

ubi

Posted: **29 Nov 2010, 16:11**

Ok, so the following 2 logs, Daemon, Syslog are 4GB each and both contain the following line over and over:

Nov 29 15:17:35 main-bubba cnid_metad[1148]: error in select: Bad file descriptor

Am researching it now.

Posted: **29 Nov 2010, 16:21**

cnid_metad is afaik related to appletalk. "error in select" "Bad file descriptor" then suggests a network issue. You have Macs in your network?
If not you can try and isable netatalk and see if it improves things. I'm pretty sure this is not connected to your dovecot issue.

Posted: **29 Nov 2010, 16:29**

There is a Mac machine on the network running Windows 7?

I didn't think this was related to the dovecot, I have a feeling the dovecot issue can be resolved by geting the space back on the partition and then making sure my dovecot.conf file is configured properly.

I will try disabling netatalk - if I do the following:

/etc/init.d/netatalk stop

I'm guessing that will stop it until the next reboot?

Posted: **29 Nov 2010, 16:38**

you can disable it permanently from the web interface (which should be up if you killed those huge logfiles)
or if you remove the symlink from /etc/rc2.d was well (it seems bubba runs in runlevel 2 for some higher reasnoning, enter "runlevel" in the shell to see)

Posted: **29 Nov 2010, 17:16**

Ok, so have now removed those log files, rebooted with those lines in the dovecot.conf file and have disabled netatalk.

I've opened those dovecot log files and this is what is printed:

root@main-bubba:/tmp# ls
dovecot-info.log dovecot.log ftdaemon sess_7bnf8o9akfqcl65b6nfbfq3oj0
root@main-bubba:/tmp# nano dovecot.log
root@main-bubba:/tmp# cat dovecot.log
root@main-bubba:/tmp# cat dovecot-info.log
2010-11-29 21:42:05 dovecot: Info: Dovecot v1.2.13 starting up (core dumps disabled)
root@main-bubba:/tmp#

I was hoping to see more??

I will check over the dovecot.conf file.

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