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Jason

2014-Apr-25 02:29 UTC

[Dovecot] dovecot temporary suspension all of pop3 login about 5 minutes

Dear All?

 

When the user login P0P3 more than 10 times in 1 minute that the dovecot
temporary suspension all of pop3 login about 5 minutes.

How to disable the setting for dovecot.

 

Mail Log:

Apr 24 16:11:14 mww dovecot: pop3-login: Login: user=<scan>, method=PLAIN,
rip=192.168.16.84, lip=192.168.16.159, mpid=8767,
session=<5USPZMX3/QDAqBBU>

Apr 24 16:11:14 mww dovecot: pop3(scan): Disconnected: Logged out top=0/0,
retr=0/0, del=0/0, size=0

Apr 24 16:11:15 mww dovecot: auth-worker: Error: no talloc stackframe at
../source3/param/loadparm.c:4864, leaking memory

Apr 24 16:11:15 mww dovecot: pop3-login: Login: user=<scan>, method=PLAIN,
rip=192.168.16.84, lip=192.168.16.159, mpid=8769,
session=<GzyeZMX3/wDAqBBU>

Apr 24 16:11:15 mww dovecot: pop3(scan): Disconnected: Logged out top=0/0,
retr=0/0, del=0/0, size=0

Apr 24 16:11:16 mww dovecot: auth-worker: Error: no talloc stackframe at
../source3/param/loadparm.c:4864, leaking memory

Apr 24 16:11:16 mww dovecot: pop3-login: Login: user=<scan>, method=PLAIN,
rip=192.168.16.84, lip=192.168.16.159, mpid=8771,
session=<bGSsZMX3AQDAqBBU>

Apr 24 16:11:16 mww dovecot: pop3(scan): Disconnected: Logged out top=0/0,
retr=0/0, del=0/0, size=0

Apr 24 16:11:17 mww dovecot: auth-worker: Error: no talloc stackframe at
../source3/param/loadparm.c:4864, leaking memory

Apr 24 16:11:17 mww dovecot: pop3-login: Login: user=<scan>, method=PLAIN,
rip=192.168.16.84, lip=192.168.16.159, mpid=8773,
session=<ASq6ZMX3AwDAqBBU>

Apr 24 16:11:17 mww dovecot: pop3(scan): Disconnected: Logged out top=0/0,
retr=0/0, del=0/0, size=0

Apr 24 16:11:18 mww dovecot: auth-worker: Error: no talloc stackframe at
../source3/param/loadparm.c:4864, leaking memory

Apr 24 16:11:18 mww dovecot: pop3-login: Login: user=<scan>, method=PLAIN,
rip=192.168.16.84, lip=192.168.16.159, mpid=8775,
session=<Ux3JZMX3BQDAqBBU>

Apr 24 16:11:18 mww dovecot: pop3(scan): Disconnected: Logged out top=0/0,
retr=0/0, del=0/0, size=0

Apr 24 16:11:23 mww dovecot: pop3-login: Disconnected (auth failed, 1 attempts
in 4 secs): user=<scan>, method=PLAIN, rip=192.168.16.84,
lip=192.168.16.159, session=<kP3WZMX3BwDAqBBU>

Apr 24 16:12:04 mww dovecot: pop3-login: Disconnected (auth failed, 1 attempts
in 4 secs): user=<jason>, method=PLAIN, rip=192.168.16.59,
lip=192.168.16.159, session=<WX9NZ8X3pwDAqBA7>

 

Dovecot v2.2.9 

 

# 2.2.9: /etc/dovecot/dovecot.conf

doveconf: Warning: NOTE: You can get a new clean config file with: 

doveconf -n > dovecot-new.conf

doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:99: 

ssl_disable has been renamed to ssl

# OS: Linux 3.13.0-24-generic x86_64 Ubuntu 14.04 LTS disable_plaintext_auth =
no mail_location = mbox:~/mail:INBOX=/var/mail/%u namespace inbox {

   inbox = yes

   location 
   mailbox Drafts {

     special_use = \Drafts

   }

   mailbox Junk {

     special_use = \Junk

   }

   mailbox Sent {

     special_use = \Sent

   }

   mailbox "Sent Messages" {

     special_use = \Sent

   }

   mailbox Trash {

     special_use = \Trash

   }

   prefix 
}

passdb {

   driver = pam

}

plugin {

   sieve = ~/.dovecot.sieve

   sieve_dir = ~/sieve

}

protocols = " imap pop3"

ssl = no

ssl_cert = </etc/dovecot/dovecot.pem

ssl_key = </etc/dovecot/private/dovecot.pem userdb {

   driver = passwd

}

protocol imap {

   mail_max_userip_connections = 100

}

protocol pop3 {

   mail_max_userip_connections = 100

}

 

 

Best regards,

 

Jason

Steffen Kaiser

2014-Apr-25 07:14 UTC

head link

[Dovecot] dovecot temporary suspension all of pop3 login about 5 minutes

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Fri, 25 Apr 2014, Jason wrote:
> When the user login P0P3 more than 10 times in 1 minute that the dovecot
temporary suspension all of pop3 login about 5 minutes.
>
> How to disable the setting for dovecot.
> Apr 24 16:11:14 mww dovecot: pop3-login: Login: user=<scan>,
method=PLAIN, rip=192.168.16.84, lip=192.168.16.159, mpid=8767,
session=<5USPZMX3/QDAqBBU>
> Apr 24 16:11:14 mww dovecot: pop3(scan): Disconnected: Logged out top=0/0,
retr=0/0, del=0/0, size=0
> Apr 24 16:11:15 mww dovecot: auth-worker: Error: no talloc stackframe at
../source3/param/loadparm.c:4864, leaking memory
> # 2.2.9: /etc/dovecot/dovecot.conf
> doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:99:
> ssl_disable has been renamed to ssl
...> ssl = no
Check out last log line, it's a bug. First try update your config, then 
upgrade to v2.2.13, then let us know if your bug is fixed.

BTW: I do not find no loadparm.c in v2.2.12.

http://ubuntuforums.org/showthread.php?t=2214042
http://osdir.com/ml/ubuntu-bugs/2014-04/msg16458.html
http://ubuntuforums.org/showthread.php?t=2218612

Looks like an Ubuntu bug with authentifications.

- -- 
Steffen Kaiser
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Steffen Kaiser

2014-Apr-25 07:14 UTC

head link

Re: dovecot temporary suspension all of pop3 login about 5 minutes

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Fri, 25 Apr 2014, Jason wrote:
> When the user login P0P3 more than 10 times in 1 minute that the dovecot
temporary suspension all of pop3 login about 5 minutes.
>
> How to disable the setting for dovecot.
> Apr 24 16:11:14 mww dovecot: pop3-login: Login: user=<scan>,
method=PLAIN, rip=192.168.16.84, lip=192.168.16.159, mpid=8767,
session=<5USPZMX3/QDAqBBU>
> Apr 24 16:11:14 mww dovecot: pop3(scan): Disconnected: Logged out top=0/0,
retr=0/0, del=0/0, size=0
> Apr 24 16:11:15 mww dovecot: auth-worker: Error: no talloc stackframe at
../source3/param/loadparm.c:4864, leaking memory
> # 2.2.9: /etc/dovecot/dovecot.conf
> doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:99:
> ssl_disable has been renamed to ssl
...> ssl = no
Check out last log line, it's a bug. First try update your config, then 
upgrade to v2.2.13, then let us know if your bug is fixed.

BTW: I do not find no loadparm.c in v2.2.12.

http://ubuntuforums.org/showthread.php?t=2214042
http://osdir.com/ml/ubuntu-bugs/2014-04/msg16458.html
http://ubuntuforums.org/showthread.php?t=2218612

Looks like an Ubuntu bug with authentifications.

- -- 
Steffen Kaiser
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Version: GnuPG v1.4.11 (GNU/Linux)

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Jason

2014-Apr-25 07:23 UTC

head link

[Dovecot] dovecot temporary suspension all of pop3 login about 5 minutes

Dear Steffen Kaiser,

Thank you very much!

Best regards,

Jason

-----Original Message-----
From: Steffen Kaiser [mailto:skdovecot at smail.inf.fh-brs.de] 
Sent: Friday, April 25, 2014 3:14 PM
To: Jason
Cc: dovecot at dovecot.org
Subject: Re: [Dovecot] dovecot temporary suspension all of pop3 login about
5 minutes

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Fri, 25 Apr 2014, Jason wrote:
> When the user login P0P3 more than 10 times in 1 minute that the dovecot
temporary suspension all of pop3 login about 5 minutes.>
> How to disable the setting for dovecot.
> Apr 24 16:11:14 mww dovecot: pop3-login: Login: user=<scan>, 
> method=PLAIN, rip=192.168.16.84, lip=192.168.16.159, mpid=8767, 
> session=<5USPZMX3/QDAqBBU> Apr 24 16:11:14 mww dovecot: pop3(scan): 
> Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0 Apr 24 
> 16:11:15 mww dovecot: auth-worker: Error: no talloc stackframe at 
> ../source3/param/loadparm.c:4864, leaking memory
> # 2.2.9: /etc/dovecot/dovecot.conf
> doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:99:
> ssl_disable has been renamed to ssl
...> ssl = no
Check out last log line, it's a bug. First try update your config, then
upgrade to v2.2.13, then let us know if your bug is fixed.

BTW: I do not find no loadparm.c in v2.2.12.

http://ubuntuforums.org/showthread.php?t=2214042
http://osdir.com/ml/ubuntu-bugs/2014-04/msg16458.html
http://ubuntuforums.org/showthread.php?t=2218612

Looks like an Ubuntu bug with authentifications.

- --
Steffen Kaiser
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Version: GnuPG v1.4.11 (GNU/Linux)

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Jason

2014-Apr-28 09:07 UTC

head link

[Dovecot] dovecot temporary suspension all of pop3 login about 5 minutes

Dear Steffen Kaiser,

I had fixed the problem after upgrade to v2.2.12 .

Best regards,

Jason

-----Original Message-----
From: dovecot [mailto:dovecot-bounces at dovecot.org] On Behalf Of Steffen
Kaiser
Sent: Friday, April 25, 2014 3:14 PM
To: Jason
Cc: dovecot at dovecot.org
Subject: Re: [Dovecot] dovecot temporary suspension all of pop3 login about
5 minutes

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Fri, 25 Apr 2014, Jason wrote:
> When the user login P0P3 more than 10 times in 1 minute that the dovecot
temporary suspension all of pop3 login about 5 minutes.>
> How to disable the setting for dovecot.
> Apr 24 16:11:14 mww dovecot: pop3-login: Login: user=<scan>, 
> method=PLAIN, rip=192.168.16.84, lip=192.168.16.159, mpid=8767, 
> session=<5USPZMX3/QDAqBBU> Apr 24 16:11:14 mww dovecot: pop3(scan): 
> Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0 Apr 24 
> 16:11:15 mww dovecot: auth-worker: Error: no talloc stackframe at 
> ../source3/param/loadparm.c:4864, leaking memory
> # 2.2.9: /etc/dovecot/dovecot.conf
> doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:99:
> ssl_disable has been renamed to ssl
...> ssl = no
Check out last log line, it's a bug. First try update your config, then
upgrade to v2.2.13, then let us know if your bug is fixed.

BTW: I do not find no loadparm.c in v2.2.12.

http://ubuntuforums.org/showthread.php?t=2214042
http://osdir.com/ml/ubuntu-bugs/2014-04/msg16458.html
http://ubuntuforums.org/showthread.php?t=2218612

Looks like an Ubuntu bug with authentifications.

- --
Steffen Kaiser
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