Optimizing setup (MS, Clamav and SpamAssassin)
Robert Mena
rt_mena at YAHOO.COM
Wed Apr 7 14:30:10 IST 2004
Hi,
I am newbie to the trio ms/clamav/ss so I am looking
for tips regarding optimizing results/performance.
I've already made it work in my devel machine but
moving to the production is another story. First I'd
like to share my current setup and problems...
I use a qmail+rav (antivirus and antispam) and receive
10K messages during a normal day and up to 100K in a
spam/virus outbreak situation.
When this happens my users complain about the delay of
the email since it can take hours to be processed from
the queue to the user's maildir.
I am moving to exim+ms+clamav+ss and one of the
strategies I plan to adopt is to have diferent
incoming queues. The "standard" exim.in queue and
another exim2.in to be used when the source address
belongs to certain classes (for ex. dsl/cable
companies).
I'd have another process of exim running in a diferent
port (ex. 26) with iptables redirecting. This exim
would have more restrictive settings (such as lower
number of connections, cc's etc). Since most of my
spam/virus comes from those
broadband-dont-upgrade-machines I'd would end up with
a lower queue of spam/virus.
>From MS seems easy since I can define the incoming
queues in a separate file (/var/spool/exim.in/incoming
and /var/spool/exim2.in/incoming) but how about other
tweaks ?
Like using clamav this way or another, number of
instances of MS, SpamAssassin etc.
My production machine is a Pentium 4 HT 2.8Ghz with
1Gb RAM DDR 400.
Mem: 1029916K av, 1011488K used, 18428K free,
0K shrd, 467756K buff 323068K cached
Thanks.
-rt
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