[Dovecot] PAM authentication problem: MD5 vs crypt

[Timo Sirainen]

Well, this problem is completely in PAM side. Dovecot knows nothing  
about if the password is in MD5 format or in files or dbm. I can't  
think of anything why with identical configuration this would work  
with UW-IMAP but not with Dovecot..

On 23.9.2006, at 18.06, bhayden at umn.edu wrote:

> A glaring omission in my original post: This problem only appears  
> with Dovecot. Other services, including UW-IMAP, work for all four  
> instances noted below.
>
> -Brian
>
> On Sep 22 2006, bhayden at umn.edu wrote:
>
>> Here's a strange one. I have Dovecot set up on Solaris 9. The auth  
>> portion of the config is straight out of the box. Using PAM. We  
>> have most users in a dbm file which is just a series of key/value  
>> pairs: key is a username, and value is a string equivalent to a  
>> shadow entry. nsswitch.conf entry: passwd files dbm.
>>
>> For historical reasons, some users have a classic 13-character  
>> Unix crypt password hash, while others have a 34-character MD5  
>> hash. Here's the situation:
>>
>> User location         pw Hash           Auth succeeds/fails
>> ----------------------------------------------   
>> files                       crypt                 succeeds
>> dbm                       crypt                 succeeds
>> files                       MD5                  succeeds
>> dbm                       MD5                  FAILS
>>
>>
>> After two days of research, trussing, and etc, I am stumped. Does  
>> anyone have a thought?
>>
>> -Brian
>>

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