Source: dovecot
Version: 1:2.2.13-12~deb8u1
Severity: normal
Dovecot stopped working after the upgrade from wheezy to jessie: None of
our users could still log in.
After some debugging, the problem was fixed by switching from
passdb { driver=pam } to passdb { driver=shadow }. However, I believe
that pam authentication is still supposed to work. Maybe you can help
find the underlying issue?
Here some information -- first, output of doveconf -n:
----
# 2.2.13: /etc/dovecot/dovecot.conf
# OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.2
auth_debug = yes
mail_location = maildir:~/Maildir
passdb {
driver = pam
}
protocols = imap
service auth {
user = root
}
ssl = required
ssl_cert = </etc/dovecot/ssl.crt
ssl_key = </etc/dovecot/private/ssl.key
userdb {
driver = passwd
}
----
Content of /etc/pam.d/dovecot:
----
auth required pam_unix.so nullok
account required pam_unix.so
----
auth_debug_passwords=yes confirms that I am using the correct password.
As already mentioned, it also works with passdb { driver=shadow }.
Dovecot's auth process is running as root, and the file in /etc/pam.d/
is named correctly. WhyDoesItNotWork.txt does not provide any more hints
what could be wrong.
Running "doveadm auth test username" fails. Running "pamtester dovecot
username authenticate" reports success.
/var/log/auth.log says:
auth: pam_unix(dovecot:auth): check pass; user unknown
auth: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0
tty=dovecot
ruser=username rhost=
Please let me know if I can provide further information.
Thanks, Nis
-- System Information:
Debian Release: 8.2
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.16.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)
