New dovecot install - User not known to the underlying authentication module

crnz · 11-04-2010, 05:17 PM

Situation: fresh dovecot install. I have postfix successfully accepting and delivering mail to a virtual mailbox.

I'm trying to pop that mailbox, but it can't see it. I hope someone can point out where my config is wrong.

Code:

dovecot -n
# 1.0.7: /etc/dovecot.conf
protocols: pop3
login_dir: /var/run/dovecot/login
login_executable: /usr/libexec/dovecot/pop3-login
mail_location: mbox:/var/spool/mail/%d/%n
mail_executable: /usr/libexec/dovecot/pop3
mail_plugin_dir: /usr/lib64/dovecot/pop3
auth default:
  verbose: yes
  debug: yes
  debug_passwords: yes
  passdb:
    driver: pam
  userdb:
    driver: passwd
  userdb:
    driver: passwd-file
    args: scheme=PLAIN username_format=%n /etc/auth/%d-passwd

content of the (domain)-passwd file

Code:

]# cat /etc/auth/domain.com-passwd 
testuser:password:98:98::/home/user::INBOX=/var/spool/mail/vhosts/%d/%n

Keep in mind, postfix delivers successfully to /var/spool/mail/vhosts/%d/%n

The /var/log/secure logs I get say (trying both testuser and testuser@domain.com)

Code:

Nov  4 21:58:19 cloud dovecot-auth: pam_unix(dovecot:auth): check pass; user unknown
Nov  4 21:58:19 cloud dovecot-auth: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser= rhost=::ffff:202.x.x.x 
Nov  4 21:58:19 cloud dovecot-auth: pam_succeed_if(dovecot:auth): error retrieving information about user testuser
Nov  4 21:58:35 cloud dovecot-auth: pam_unix(dovecot:auth): check pass; user unknown
Nov  4 21:58:35 cloud dovecot-auth: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser= rhost=::ffff:202.x.x.x
Nov  4 21:58:35 cloud dovecot-auth: pam_succeed_if(dovecot:auth): error retrieving information about user testuser@domain.com

And /var/log/maillog says

Code:

Nov  4 21:58:09 cloud dovecot: auth(default): new auth connection: pid=30549
Nov  4 21:58:19 cloud dovecot: auth(default): client in: AUTH   1       PLAIN service=POP3     lip=::ffff:173.x.x.x       rip=::ffff:202.x.x.x      resp=AG51dABtaGFsbDY5Njk=
Nov  4 21:58:19 cloud dovecot: auth(default): pam(testuser,::ffff:202.x.x.x): lookup service=dovecot
Nov  4 21:58:21 cloud dovecot: auth(default): pam(testuser,::ffff:202.x.x.x): pam_authenticate() failed: User not known to the underlying authentication module
Nov  4 21:58:22 cloud dovecot: auth(default): client out: FAIL  1       user=testuser
Nov  4 21:58:35 cloud dovecot: auth(default): client in: AUTH   2       PLAIN service=POP3     lip=::ffff:173.x.x.x       rip=::ffff:202.x.x.x      resp=AG51dEBuYWtlZGtpd2kuY28ubnoAbWhhbGw2OTY5
Nov  4 21:58:35 cloud dovecot: auth(default): pam(testuser@domain.com,::ffff:202.x.x.x): lookup service=dovecot
Nov  4 21:58:37 cloud dovecot: auth(default): pam(testuser@domain.com,::ffff:202.x.x.x): pam_authenticate() failed: User not known to the underlying authentication module
Nov  4 21:58:38 cloud dovecot: auth(default): client out: FAIL  2       user=testuser@domain.com

I checked file permissions, paths...

I'm currently out of ideas

crnz · 11-04-2010, 05:24 PM

Hmmm, could the problem be here?

/etc/pam.d/dovecot

Code:

%PAM-1.0
auth       required     pam_nologin.so
auth       include      system-auth
account    include      system-auth
session    include      system-auth

crnz · 11-04-2010, 09:50 PM

I want to close this thread. I've moved on to a config quite different from this. Still struggling, but the questions are now different