Good day,
we have 2 mail server, one with antispam/antivirus services and another
one without them, both with postfix and another server with mysql db
backend storing login/password. We are happy with this, but needing to
increase performance, we are looking for load balancing solutions. The
first wat I was thinking about, is to move the storing from the servers
to a single NFS server, and use the mail/pop3 server just as "engine"
that check
login/password on the mysql db and access data in the NFS and load balance
with dns round robin through the various servers I can use as frontend.
The uplink is a 34Mbps so I don't think NFS is a problem for performances.
Servers are different, the antivirus/antispam is only for receiving, while
the other(s) is(are) for both receive and send.
Do you think this would be a good solution ? Is there a better solution
than round robin (ie, perdition or iptables with DNAT based on
stattistical redirection) ?