On Wed, 10 Sep 2003, Jim wrote:
> On Tue, Sep 09, 2003 at 12:18:10AM -0400, Debbie D wrote:
> > 3 times today I noticed the server running very high loads of 4-6 and as
> > high as 10, normally I run 1% or lower usually closer to .3-.6%. Three days
> > in a row I have gotten over load notices.. Tonight I got an out of memory
> > notice and jumped right on to tail the mail log.. The sheer amount of spam
> > was pouring in at amazing rates.. I grabed upwards of 50 domians names and
> > IP's and plopped them into the Reject the following Users/Hosts/Domains ..
> > the loads came down fairly quick after that but this is making me nervous to
> > be frank.. any suggestions??
>
> First, make sure you're using spamc/spamd and not invoking "spamassassin"
> to save yourself some load.
>
> Secondly, set a limit on the max # of active spamd connections you permit.
> See the -m switch to spamd. Try setting it to maybe 5 or 10 and work
> upwards from there.
Another way is to throttle incoming connections with your MTA.
For example, with sendmail you can adjust the Refuse-Load-Average
threshold so to not accept new mail when the machine is busy and
the ConnectionRateThrottle to limit the maximum number of new
connections per second.
--
Dave Funk University of Iowa
<dbfunk (at) engineering.uiowa.edu> College of Engineering
319/335-5751 FAX: 319/384-0549 1256 Seamans Center
Sys_admin/Postmaster/cell_admin Iowa City, IA 52242-1527
#include <std_disclaimer.h>
Better is not better, 'standard' is better. B{
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