Tim Alberts wrote:
Running two Fedora 6 systems with all the latest updates as of a
couple days ago at least. One system is the mail server (sendmail,
dovecot), the other is the master (open)LDAP server with the mail
server running a slave LDAP instance.
The problem I'm having is the client pop3 users are frequently being
told their passwords aren't correct by their email clients (Outlook,
Eudora). They try again, a couple times and eventually it works.
I've seen it on my own account and when I test their accounts,
occasionally it just doesn't take the password. I've only had this
trouble since I implemented the LDAP authentication.
Checking through the server maillog, I see the following entry:
Apr 4 08:44:38 msi2 dovecot: auth(default): dovecot-auth:
../../../libraries/liblber/io.c:491: ber_get_next: Assertion
`ber->ber_buf == ((void *)0)' failed.
Apr 4 08:44:38 msi2 dovecot: auth(default):
pam(secretuser,192.168.0.200): Child process died
Apr 4 08:44:38 msi2 dovecot: auth(default): PAM: Child 14564 died
with signal 6
Apr 4 08:44:38 msi2 dovecot: pop3-login: Aborted login:
user=<secretuser>, method=PLAIN, rip=192.168.0.200, lip=192.168.0.11
I've been on the dovecot mailing list and after a couple days of running
without errors, I believe I've found the problem.
The upgraded dovecot package mostly fixed the problem, but I also had to
apply some configuration changes described at the following link:
http://wiki.dovecot.org/AuthDatabase/Passwd
So with the following version and configuration, I've got a stable
program again.
[root@msi2 ~]# dovecot --version
1.0.rc28
[root@msi2 ~]# dovecot -n
# /etc/dovecot.conf
protocols: pop3
listen:
login_dir: /var/run/dovecot/login
login_executable: /usr/libexec/dovecot/pop3-login
mail_executable: /usr/libexec/dovecot/pop3
mail_plugin_dir: /usr/lib/dovecot/pop3
pop3_client_workarounds: outlook-no-nuls oe-ns-eoh
auth default:
passdb:
driver: pam
args: dovecot
userdb:
driver: passwd
args: blocking=yes
[root@msi2 ~]#
