dovecot - Jan 2008 - Static list of users with passdb pam

Hi,

On my system, I want to provide imap access for some of the users listed
in /etc/passwd. The list of users should be provided by me, and should
just be a list in a text file. All the userdb options are static (uid,
gid, home directory). Unfortunately, I cannot think of a way to
configure Dovecot to do this. The closest I get is with:

passdb pam {}
userdb passwd-file {
  args = /path/to/passwd-file
}

However, the passwd-file is now more complex than it really needs to be,
as it includes fields for password, uid, gid and home directory as well.

Is there some way to handle this? Or am I trying to do something stupid?

Thanks!

Koen

If you are using pam already, why not add to /etc/pam.d/dovecot
something like:

auth	required	pam_listfile.so	onerr=fail item=user sense=allow
file=/etc/dovecot/allowed_users

The syntax may not be quite correct as this is off the top of my head
and I havent tested it, but we do something very similar with other pam
authentications, such as from vsftpd, to restrict user access.

Regards,
Rob

On Fri, 2008-01-18 at 10:04 +0100, Koen Vermeer wrote:
> Hi,
> 
> On my system, I want to provide imap access for some of the users listed
> in /etc/passwd. The list of users should be provided by me, and should
> just be a list in a text file. All the userdb options are static (uid,
> gid, home directory). Unfortunately, I cannot think of a way to
> configure Dovecot to do this. The closest I get is with:
> 
> passdb pam {}
> userdb passwd-file {
>   args = /path/to/passwd-file
> }
> 
> However, the passwd-file is now more complex than it really needs to be,
> as it includes fields for password, uid, gid and home directory as well.
> 
> Is there some way to handle this? Or am I trying to do something stupid?
> 
> Thanks!
> 
> Koen
> 

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