From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Fri, 21 Nov 2008 17:55:34 -0500 To: arisawa@ar.aichi-u.ac.jp, 9fans@9fans.net Message-ID: In-Reply-To: References: <91428b31c1ef98ddc01e31bf249b0b7a@quanstro.net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] (no subject) Topicbox-Message-UUID: 50888bdc-ead4-11e9-9d60-3106f5b1d025 > Hello, > > If such an attack continues for some minutes and the server does not > reject the connections > the server will create thousands of smtpd processes and might be hung > up. > > Kenji Arisawa > but that's not what happens. waiting for 15 seconds decreases the load to near zero. it's not a ddos attack. in fact, most of the trouble came from a single zombie. if it were, i would need to see more than 10 connections/second before i would have a significant backlog. i can easily afford 150 smtpds sleeping. - erik