Just take a look on the next qmail-ldap patch this weekend, it does
all (except RADIUS) what you want.
I'll do an excessive announcement of it here when it's available.
--
Andre
Tillman wrote:
>
> Sam wrote:
>
> > Stefan Osterman writes:
> >
> > > I need some advice how to install a Qmail system that can handle 20k users
> > > scaling up to 200k users. The system should handle mulitple domains and not
> > > use the /etc/passwd file. Each Maildir should have quota whith mail
> > > notification to user, sender and maybe some other address.
> >
> > Incoming mail should be handled by qmail-users, it will scale.
> >
> > If you're ok with POP3/IMAP users logging in using their UNIX ids, you're
> > all set. If you want users to login under their virtual domains, vchkpw
> > won't work because it won't scale - it scans a flat file for user
> > validation.
>
> I'm jumping into this thread, as I'm in a very similar position. I'm a little
> leery of using uid's, because (from my understanding) they're a signed 16-bit
> field, meaning that only 32K users can actually operate (on a 2.0.36 Linux
> system).
>
> > Write a custom checkpassword checking routine, using something like GDBM to
> > validate userid/domains.
>
> Ideally, I'd like to use the radius patch in conjunction with this. I haven't
> yet downloaded the patch or read the DOC's, as I'm in the middle of somewhat
> time-intensive DNS migration, but I'm not exactly positive where it would get
> it's home-dir information for use with Maildir's ... our Cistron radius server
> certainly doesn't have that information available to server out the way thigns
> stand now :-)
>
> > Qmail has no builtin quota support. Write a custom script that sweeps
> > through all the mailboxes, notifies owners which exceed their soft quota,
> > and locks out mail delivery to mailboxes that exceed their hard quota.
> > Modify your POP3/IMAP server to unlock mailboxes, if necessary, after mail
> > is deleted.
>
> Would not the hard quota itself lock out delivery, or is there some "might break
> qmail" issue that I'm missing? I'm perfectly content with a bounce mentioning
> disk space, as the users are well aware of the 10Mb limit that we are currently
> imposing on our soon-to-be-replaced mail system.
>
> > Get a separate RAID box, move all the disks there, and put it on the
> > network. Have both machines mount the same filesystem, and use it as the
> > mail store, using Maildirs. The machines should have only enough disk
> > space to run the OS, plus sufficient disk space for your active mail queue.
>
> I'm not all that worried about throughput in my situation, as the current mail
> server is handling the load just fine. I'm looking for a solution that lets me
> use radius (to consolidate the user database at long last :-) for authentication,
> ideally for more than 32K users (we're at 10K now) and even more ideally in an
> automated fashion, such that adding a user to the radius database automatically
> adds their mail store dir. I'm not yet started on the planning for this project,
> so this might be more simple than it appears to me at the moment.
>
> -Tillman Hodgson
--
Andre
