Re: Dovecot Assertion on mail server with POP3 and LDAP authentication

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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


This seems to point out that dovecot is the problem, but again, I didn't have this trouble until I implemented the LDAP authentication. So my question is, anyone know a solution? If not, anyone got a suggestion of where I should look for more clues or support? Or any suggestions at all?

Thanks for any help.

Still no thoughts?  Unusual.


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