On Sun, 17 Mar 2002, Marilyn Davis wrote:
> 2002-03-17 06:23:04 Connection from 203.207.226.79 refused: too many
> connections
> We just took on a new vote-by-mail responsibility so there could be a
> new attack on us. There's not much traffic with us or with this
> responsibility, but it is a very important demonstration of the
> feasibility of voting by mail. So it is odd that it happens now.
It could be an attack, I suppose. Somebody just floods your SMTP
connections, and waits for timeouts. You could try reducing the value of
smtp_receive_timeout from its default of 5 minutes.
Hmm. I suppose a very evil person could just sit there and issue a NOOP
command every 4m30s or so. Maybe smtp_accept_max_per_host would help.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
