On Tue, May 02, 2000 at 03:23:44PM -0700, Reece Markowsky wrote:
> Is it possible to run multiple instances of qmail on a single machine -
> each instance bound to a separate IP interface. If so, could you
No problems at all.
> describe (in general) how to configure this and any limitations (eg max
> instances/server) etc.
Depends very much on what you want to do, but if they are completely
separate universes, you'll need to re-compile qmail with a different
/var/qmail for each instance (/var/qmail1, /var/qmail2 comes to mind).
Binding is of course done with tcpserver invoking the relevant qmail-smtpd
from the respective /var/qmail* hierarchy.
Merged universes are more interesting. Do you want a common alias user?
The limitations in doing this are based on your OS, not qmail. Ie, how
many interfaces you can have, how much disk space, how many processes.
Regards.