[Dovecot] Pam authentication failure message but it works

Wayne Andersen Fri, 14 Jun 2013 08:46:27 -0700

I am running Centos 6.4 64bit.
Dovecot 2.0.9

I am getting the following messages in /var/log/secure, which looks likethe pam authentication is not working but the users are allowed to loginand the system works great.I am wondering if pam is actually failing and yet the system is gettingthe login info from elsewhere, or is this just a nuisance message?


/var/log/secure

Jun 12 23:11:29 smtp auth: pam_unix(dovecot:auth): authenticationfailure; logname= uid=0 euid=0 tty=dovecot ruser=christinegrhost=65.13.54.123 user=christinegJun 12 23:11:45 smtp auth: pam_unix(dovecot:auth): authenticationfailure; logname= uid=0 euid=0 tty=dovecot ruser=susiegrhost=70.208.29.109 user=susiegJun 12 23:12:03 smtp auth: pam_unix(dovecot:auth): authenticationfailure; logname= uid=0 euid=0 tty=dovecot ruser=bobsrhost=70.59.189.210 user=bobs

In the debug log file I see what looks like a successful connection, butdon't know how to read the two pam lines.


/var/log/dovecot.debug.log
Jun 12 23:11:29 auth: Debug: auth client connected (pid=10098)

Jun 12 23:11:29 auth: Debug: client in: AUTH 1 PLAINservice=imap lip=206.169.228.24 rip=65.13.54.123 lport=143rport=54049 resp=AGNocmlzZwBjZzQ4MjU=Jun 12 23:11:29 auth: Debug: pam(christineg,65.13.54.123): lookupservice=dovecotJun 12 23:11:29 auth: Debug: pam(christineg,65.13.54.123): #1/1 style=1msg=Password:

Jun 12 23:11:29 auth: Debug: client out: OK     1 user=christineg

Jun 12 23:11:29 auth: Debug: master in: REQUEST 4079353857 100981 0229474c9c1038e161328ecd28884af2

Jun 12 23:11:29 auth: Debug: passwd(christineg,65.13.54.123): lookup

Jun 12 23:11:29 auth: Debug: master out: USER 4079353857 christinegsystem_groups_user=christineg uid=1116 gid=100 home=/home/christinegJun 12 23:11:29 imap(christineg): Debug: Effective uid=1116, gid=100,home=/home/christinegJun 12 23:11:29 imap(christineg): Debug: maildir++:root=/home/christineg/Maildir, index=, control=,inbox=/home/christineg/Maildir


Jun 12 23:11:44 auth: Debug: auth client connected (pid=10100)

Jun 12 23:11:45 auth: Debug: client in: AUTH 1 PLAINservice=imap lip=206.169.228.24 rip=70.208.29.109lport=143 rport=14107

Jun 12 23:11:45 auth: Debug: client out: CONT   1

Jun 12 23:11:45 auth: Debug: client in: CONT 1AHJpY2hhcmRnQGNsaW1hLXRlY2guY29tAHJnMzgyMg==Jun 12 23:11:45 auth: Debug: pam(susieg,70.208.29.109): lookupservice=dovecotJun 12 23:11:45 auth: Debug: pam(susieg,70.208.29.109): #1/1 style=1msg=Password:

Jun 12 23:11:45 auth: Debug: client out: OK     1       user=susieg

Jun 12 23:11:45 auth: Debug: master in: REQUEST 3368157185 101001 5a8d4b15a417d0bc4d2f818c5a5710f0

Jun 12 23:11:45 auth: Debug: passwd(susieg,70.208.29.109): lookup

Jun 12 23:11:45 auth: Debug: master out: USER 3368157185 susiegsystem_groups_user=susieg uid=1087 gid=100 home=/home/susiegJun 12 23:11:45 imap(susieg): Debug: Effective uid=1087, gid=100,home=/home/susiegJun 12 23:11:45 imap(susieg): Debug: maildir++:root=/home/susieg/Maildir, index=, control=, inbox=/home/susieg/Maildir


Jun 12 23:12:03 auth: Debug: auth client connected (pid=10104)
Jun 12 23:12:03 auth: Debug: auth client connected (pid=10105)

Jun 12 23:12:03 auth: Debug: client in: AUTH 1 PLAINservice=imap lip=206.169.228.24 rip=70.59.189.210lport=143 rport=38705

Jun 12 23:12:03 auth: Debug: client out: CONT   1

Jun 12 23:12:03 auth: Debug: client in: CONT 1AGJyZW5kb25jQGNsaW1hLXRlY2guY29tAGJjMTU1NA==

Jun 12 23:12:03 auth: Debug: pam(bobs,70.59.189.210): lookup service=dovecot

Jun 12 23:12:03 auth: Debug: pam(bobs,70.59.189.210): #1/1 style=1msg=Password:

Jun 12 23:12:03 auth: Debug: client out: OK     1       user=bobs

Jun 12 23:12:03 auth: Debug: master in: REQUEST 709623809 101041 0c261d849b956bf9cb5c0833b498bb97

Jun 12 23:12:03 auth: Debug: passwd(bobs,70.59.189.210): lookup

Jun 12 23:12:03 auth: Debug: master out: USER 709623809 bobssystem_groups_user=bobs uid=1188 gid=100 home=/home/bobsJun 12 23:12:03 imap(bobs): Debug: Effective uid=1188, gid=100,home=/home/bobsJun 12 23:12:03 imap(bobs): Debug: maildir++: root=/home/bobs/Maildir,index=, control=, inbox=/home/bobs/Maildir



/etc/pam.d/dovecot
#%PAM-1.0
auth       required     pam_nologin.so
auth       include      password-auth
account    include      password-auth
session    include      password-auth

# 2.0.9: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-279.22.1.el6.x86_64 x86_64 CentOS release 6.4 (Final)
auth_debug_passwords = yes
auth_mechanisms = plain login
auth_username_format = %n
auth_verbose = yes
debug_log_path = /var/log/dovecot.debug.log
disable_plaintext_auth = no
hostname = mail.mydomain.com
lda_mailbox_autocreate = yes
lda_mailbox_autosubscribe = yes
mail_debug = yes
mail_location = maildir:~/Maildir
managesieve_notify_capability = mailto

managesieve_sieve_capability = fileinto reject envelopeencoded-character vacation subaddress comparator-i;ascii-numericrelational regex imap4flags copy include variables body enotifyenvironment mailbox date

mbox_write_locks = fcntl
passdb {
  args = failure_show_msg=yes
  driver = pam
}
plugin {
  sieve = ~/.dovecot.sieve
  sieve_dir = ~/sieve
  sieve_global_path = /var/lib/dovecot/sieve/default.sieve
}
postmaster_address = postmas...@mydomain.com
protocols = imap pop3 lmtp sieve
sendmail_path = /usr/sbin/sendmail.postfix
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0666
    user = postfix
  }
}
ssl_cert = </etc/postfix/mail.mydomain.crt
ssl_key = </etc/postfix/mail.mydomain.key
userdb {
  driver = passwd
}
protocol lmtp {
  mail_plugins = " sieve"
}
protocol lda {
  mail_plugins = " sieve"
}
protocol pop3 {
  pop3_save_uidl = no
  pop3_uidl_format = %08Xu%08Xv
}

<<attachment: waynea.vcf>>

[Dovecot] Pam authentication failure message but it works

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