On Wed, 13 Mar 2002 at 18:44, Ronald Chan wrote:
> Hi! is there anyone you guys know how can i maintain a thousand mail
> user without compromising my system bec. as far as i'm concern with
> sendmail a user with a shell has only access on my mail server, what is
> LDAP any way ?
First you probably want to use qmail or Postfix instead of Sendmail, for a
LOT of reasons. LDAP is a directory system. It fits into the picture
because as your number of users increase, the traditional single-file
/etc/{passwd,shadow} become a bottleneck during authentication. Having
LDAP also allows you to create clusters of mail servers, keeping
information on which server retains which user's mail in the LDAP
database.
I don't think granting users shell access will be a good idea. You
probably want to restrict their mail access using POP3 and IMAP. You can
probably whip up some secure web-based password changing interface to
compensate for their inability to change their password via the shell.
--> Jijo
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