I forgot to mention that if I transfer the mail to my Gmail or Outlook
address I can download the attachments without any problem. More over
I've completely removed the firewall server from the equation, I plugged
the adsl line directly into the mail server and the problem is still
there, so my guess is that the firewall isn't the problem here.
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Today's Topics:
- imap authentication - shadow vs mysql (Konra Wawryn)
- Re: imap authentication - shadow vs mysql (Ralph Seichter)
- Re: Event 0x2b1a5f270bd0 leaked (parent=(nil)):
auth-client-connection.c:338 (Michael Slusarz)
- dovecot: imap Error: read : Broken pipe (Carl St-Laurent)
- Re: dovecot: imap Error: read : Broken pipe (Felipe Gasper)
- Re: dovecot: imap Error: read : Broken pipe (Aki Tuomi)
- Re: Event 0x2b1a5f270bd0 leaked (parent=(nil)):
auth-client-connection.c:338 (Mart Pirita)
- Re: Event 0x2b1a5f270bd0 leaked (parent=(nil)):
auth-client-connection.c:338 (Aki Tuomi)
Message: 1
Date: Mon, 05 Nov 2018 13:45:48 +0100
From: Konra Wawryn <konrad.wawryn@virtual-machine.org>
To: dovecot@dovecot.org
Subject: imap authentication - shadow vs mysql
Message-ID: <13e143d52fb2f094a285306ccbdec990@virtual-machine.org>
Content-Type: text/plain; charset=US-ASCII; format=flowed
Hi,
I`m looking for some opinions about authentication process for the
systems with more than 1000 E-mail accounts.
Maybe some one could advise me what is the best authentication method.
At the moment Im storing all passwords in my /etc/passwd. My IMAP server is growing and Im planning to build new host, my question is:
what is the best authentication model for IMAP server ? Do I need to
store all user/passwords in mysql or maybe in LDAP ?
I`m searching for some solution which will help me to scale my system
in
the future.
Maybe some one could advice me ?
Greetings
Konrad
Message: 2
Date: Mon, 05 Nov 2018 14:21:39 +0100
From: Ralph Seichter <m16+dovecot@monksofcool.net>
To: dovecot@dovecot.org
Subject: Re: imap authentication - shadow vs mysql
Message-ID: <m2k1lrek2k.fsf@argon.seichter.de>
Content-Type: text/plain
I`m searching for some solution which will help me to scale my system
in the future.
You provided very little information about your requirements, and "to
scale" is just as vague a term. Hence, I recommend an LDAP server,
because it works in many scenarios, can accommodate thousands of users,
and is basically the default solution for this type of write-seldom-
read-often type of user data storage.
As for MySQL, I would personally not use it for authentication unless I
had no other option.
-Ralph
Message: 3
Date: Mon, 5 Nov 2018 10:42:14 -0700 (MST)
From: Michael Slusarz <michael.slusarz@open-xchange.com>
To: Mart Pirita <sysadmin@e-positive.ee>, dovecot@dovecot.org
Subject: Re: Event 0x2b1a5f270bd0 leaked (parent=(nil)):
auth-client-connection.c:338
Message-ID: <750544780.12327.1541439735168@appsuite.open-xchange.com>
Content-Type: text/plain; charset=UTF-8
On November 3, 2018 at 9:41 AM Mart Pirita <sysadmin@e-positive.ee>
wrote:
Hi,
But this harmless is spamming logs, so how to disable it:
grep auth-client-connection.c:338 maillog | wc -l
?? 1259
If using something like rsyslog, it is trivial to filter out unwanted
entries.
michael
Aki Tuomi wrote:
On 03 November 2018 at 12:12 Mart Pirita < sysadmin@e-positive.ee
<mailto:sysadmin@e-positive.ee>> wrote:
Hi,
Noticed with latest v2.3.3 some new warning in logs, for example:
dovecot: auth: Warning: Event 0x80a6fc0 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80aa1c8 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80aa718 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80adac0 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80b6c38 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80c0e00 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: auth client 0 disconnected with 1 pending
requests: EOF: 12 Time(s)
What are they?
--
Mart
Hi! It's harmless event leak. This is a known issue to us.
Message: 4
Date: Mon, 05 Nov 2018 18:19:26 -0500
From: Carl St-Laurent <stlauca@a3d-concept.com>
To: dovecot@dovecot.org
Subject: dovecot: imap Error: read : Broken pipe
Message-ID: <1700cf4385e77a60415db96fa1c586ac@a3d-concept.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed
Hi everyone,
I'm trying to find a solution for this bug who appears 2 months ago :
dovecot: imap(%USER%): Error: read(<binary stream of mailbox INBOX UID
(%d)>) failed: Broken pipe (FETCH BINARY[2] for mailbox INBOX UID (%d)
Where %USER% is the unix user and %d the UID of the mailbox.
This error appears each time a user tries to download an attachment
from
one of his emails. Whether with RoundCube or Thunderbird via VPN or
not.
I thought that it was related to my firewall but no. Furthermore the
problem isn't present when users are at the office. Upload speed from
our ADSL connection is pretty slow about 1mpbs, I thought maybe it was
related but it was working fine since 2 years. So I'm really short of
ideas.
Anyone could help me please ?
Best regards,
Carl
2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf
Pigeonhole version 0.4.16 (fed8554)
OS: Linux 4.9.0-7-amd64 x86_64 Debian 9.5
auth_mechanisms = plain login
disable_plaintext_auth = no
mail_location = maildir:~/Maildir
namespace inbox {
inbox = yes
location =
mailbox Drafts {
auto = subscribe
special_use = \Drafts
}
mailbox Junk {
auto = subscribe
special_use = \Junk
}
mailbox Sent {
auto = subscribe
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
auto = subscribe
special_use = \Trash
}
prefix =
}
passdb {
driver = pam
}
plugin {
sieve = file:~/sieve;active=~/.dovecot.sieve
sieve_after = /etc/dovecot/sieve-after
}
protocols = imap imap
service auth {
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0660
user = postfix
}
}
service imap-login {
inet_listener imap {
port = 0
}
inet_listener imaps {
port = 993
ssl = yes
}
}
ssl = required
ssl_ca = </etc/ssl/mail/****.pem
ssl_cert = </etc/ssl/mail/****.pem
ssl_key = # hidden, use -P to show it
userdb {
driver = passwd
}
protocol lmtp {
mail_plugins = sieve
}
protocol lda {
mail_plugins = sieve
}
Message: 5
Date: Mon, 5 Nov 2018 19:28:45 -0500
From: Felipe Gasper <felipe@felipegasper.com>
To: Dovecot Mailing List <dovecot@dovecot.org>
Subject: Re: dovecot: imap Error: read : Broken pipe
Message-ID: <AAAEBE0C-AF9E-41A4-9BB4-668667E2531D@felipegasper.com>
Content-Type: text/plain; charset=utf-8
On Nov 5, 2018, at 6:19 PM, Carl St-Laurent <stlauca@a3d-concept.com>
wrote:
Hi everyone,
I'm trying to find a solution for this bug who appears 2 months ago :
dovecot: imap(%USER%): Error: read(<binary stream of mailbox INBOX UID
(%d)>) failed: Broken pipe (FETCH BINARY[2] for mailbox INBOX UID (%d)
That looks a bit goofy ? read() should never produce EPIPE, AFAIK?
-F
Message: 6
Date: Tue, 6 Nov 2018 08:30:54 +0200
From: Aki Tuomi <aki.tuomi@open-xchange.com>
To: Dovecot Mailing List <dovecot@dovecot.org>, Carl St-Laurent
<stlauca@a3d-concept.com>
Subject: Re: dovecot: imap Error: read : Broken pipe
Message-ID: <2a43ea13-d043-fd45-119c-0e3e1b8d29cd@open-xchange.com>
Content-Type: text/plain; charset=utf-8
On 6.11.2018 2.28, Felipe Gasper wrote:
On Nov 5, 2018, at 6:19 PM, Carl St-Laurent <stlauca@a3d-concept.com>
wrote:
Hi everyone,
I'm trying to find a solution for this bug who appears 2 months ago :
dovecot: imap(%USER%): Error: read(<binary stream of mailbox INBOX
UID (%d)>) failed: Broken pipe (FETCH BINARY[2] for mailbox INBOX UID
(%d)
That looks a bit goofy ? read() should never produce EPIPE, AFAIK?
-F
It is bit strange that you are not experiencing this problem at the
office, but only from remote location(s). This does turn the pointing
finger towards firewall (despite what you said). Can you take pcaps
from
this, since it seems to be reproducible and send them to me privately?
Aki
Message: 7
Date: Tue, 6 Nov 2018 08:57:23 +0200
From: Mart Pirita <sysadmin@e-positive.ee>
To: dovecot@dovecot.org
Subject: Re: Event 0x2b1a5f270bd0 leaked (parent=(nil)):
auth-client-connection.c:338
Message-ID: <c2cc829e-c66a-73b9-2968-194e8add49ab@e-positive.ee>
Content-Type: text/plain; charset=windows-1252
Hi,
I'm not using rsyslog and instead of hiding, this event leak should be
fixed.
Michael Slusarz wrote:
On November 3, 2018 at 9:41 AM Mart Pirita <sysadmin@e-positive.ee>
wrote:
Hi,
But this harmless is spamming logs, so how to disable it:
grep auth-client-connection.c:338 maillog | wc -l
?? 1259
If using something like rsyslog, it is trivial to filter out unwanted
entries.
michael
Aki Tuomi wrote:
On 03 November 2018 at 12:12 Mart Pirita < sysadmin@e-positive.ee
<mailto:sysadmin@e-positive.ee>> wrote:
Hi,
Noticed with latest v2.3.3 some new warning in logs, for example:
dovecot: auth: Warning: Event 0x80a6fc0 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80aa1c8 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80aa718 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80adac0 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80b6c38 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80c0e00 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: auth client 0 disconnected with 1 pending
requests: EOF: 12 Time(s)
What are they?
--
Mart
Hi! It's harmless event leak. This is a known issue to us.
--
Mart
Message: 8
Date: Tue, 6 Nov 2018 09:20:22 +0200
From: Aki Tuomi <aki.tuomi@open-xchange.com>
To: Mart Pirita <sysadmin@e-positive.ee>, dovecot@dovecot.org
Subject: Re: Event 0x2b1a5f270bd0 leaked (parent=(nil)):
auth-client-connection.c:338
Message-ID: <4baea373-fbc3-e850-044c-d174c3a8c65b@open-xchange.com>
Content-Type: text/plain; charset=windows-1252
It will be fixed.
Aki
On 6.11.2018 8.57, Mart Pirita wrote:
Hi,
I'm not using rsyslog and instead of hiding, this event leak should be
fixed.
Michael Slusarz wrote:
On November 3, 2018 at 9:41 AM Mart Pirita <sysadmin@e-positive.ee>
wrote:
Hi,
But this harmless is spamming logs, so how to disable it:
grep auth-client-connection.c:338 maillog | wc -l
?? 1259
If using something like rsyslog, it is trivial to filter out unwanted
entries.
michael
Aki Tuomi wrote:
On 03 November 2018 at 12:12 Mart Pirita < sysadmin@e-positive.ee
<mailto:sysadmin@e-positive.ee>> wrote:
Hi,
Noticed with latest v2.3.3 some new warning in logs, for example:
dovecot: auth: Warning: Event 0x80a6fc0 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80aa1c8 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80aa718 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80adac0 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80b6c38 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: Event 0x80c0e00 leaked (parent=(nil)):
auth-client-connection.c:338: 1 Time(s)
dovecot: auth: Warning: auth client 0 disconnected with 1 pending
requests: EOF: 12 Time(s)
What are they?
--
Mart
Hi! It's harmless event leak. This is a known issue to us.
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End of dovecot Digest, Vol 187, Issue 7