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List:       dovecot
Subject:    [Dovecot] (no subject)
From:       Dotan Cohen <dotancohen () gmail ! com>
Date:       2013-07-07 9:47:20
Message-ID: CAKDXFkP3RESfHY8ua-kMLX3uyxT4Yz-m5s-134qoZHwGBOiRVg () mail ! gmail ! com
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On an Ubuntu Server 12.04 system with Dovecot 2.0.19 I am having some
trouble with the Dovecot passwords. I am finding this in the logs when
I unsuccessfully try to log in:

Jul 07 08:13:25 auth-worker: Debug:
pam(user@someDomain.com,212.
179.241.14): lookup service=dovecot
Jul 07 08:13:25 auth-worker: Debug:
pam(user@someDomain.com,212.179.241.14): #1/1 style=1 msg=Password:
Jul 07 08:13:27 auth-worker: Info:
pam(user@someDomain.com,212.179.241.14): pam_authenticate() failed:
Authentication failure (password mismatch?) (given password: 12345)
Jul 07 08:13:29 auth: Debug: client out: FAIL   2   user=user@someDomain.com
Jul 07 08:13:29 pop3-login: Info: Disconnected (auth failed, 2
attempts): user=<user@someDomain.com>, method=PLAIN,
rip=212.179.241.14, lip=10.138.11.251

This is not the real password, but an example to show that I think
that there is an issue:
$ /usr/bin/doveadm pw -u user@someDomain.com -s DIGEST-MD5
Enter new password: # Here I have typed "12345"
Retype new password: # Here I have typed "12345"
{DIGEST-MD5}f4e442b0dec5009eaa8b9b4104923edc
$ printf "12345" | md5sum
827ccb0eea8a706c4c34a16891f84e7b  -
$

Shouldn't that password match the md5sum check? Also, might I have the
file formats wrong?
$ cat passwd
user@someDomain.com::5000:5000::/var/mail/vhosts/someDomain.com/user
$ cat shadow
user@someDomain.com:{DIGEST-MD5}f4e442b0dec5009eaa8b9b4104923edc
$

Note that testing in Telnet fails the password as well, both when
specifying the user without a domain and with a domain:

$ telnet mail.someDomain.com 143
Trying x.x.x.x...
Connected to mail.someDomain.com.
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE
IDLE AUTH=PLAIN] Dovecot ready.
a login user 12345
a NO [AUTHENTICATIONFAILED] Authentication failed.
e logout
* BYE Logging out
e OK Logout completed.
Connection closed by foreign host.
$ telnet mail.someDomain.com 143
Trying x.x.x.x...
Connected to mail.someDomain.com.
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE
IDLE AUTH=PLAIN] Dovecot ready.
a login user@someDomain.com 12345
a NO [AUTHENTICATIONFAILED] Authentication failed.
* BAD Error in IMAP command received by server.
e logout
* BYE Logging out
e OK Logout completed.
Connection closed by foreign host.

Thanks!

--
Dotan Cohen

http://gibberish.co.il
http://what-is-what.com
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