From owner-freebsd-hackers Thu Sep 12 08:27:48 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id IAA10933 for hackers-outgoing; Thu, 12 Sep 1996 08:27:48 -0700 (PDT) Received: from Kitten.mcs.com (Kitten.mcs.com [192.160.127.90]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id IAA10876 for ; Thu, 12 Sep 1996 08:26:25 -0700 (PDT) Received: from mailbox.mcs.com (Mailbox.mcs.com [192.160.127.87]) by Kitten.mcs.com (8.7.5/8.7.5) with SMTP id KAA03655; Thu, 12 Sep 1996 10:23:26 -0500 (CDT) Received: by mailbox.mcs.com (/\==/\ Smail3.1.28.1 #28.15) id ; Thu, 12 Sep 96 10:23 CDT Received: (from karl@localhost) by Jupiter.mcs.net (8.7.5/8.7.5) id KAA16744; Thu, 12 Sep 1996 10:23:24 -0500 (CDT) From: Karl Denninger Message-Id: <199609121523.KAA16744@Jupiter.mcs.net> Subject: Re: SYN Resisting (fwd) To: avalon@coombs.anu.edu.au (Darren Reed) Date: Thu, 12 Sep 1996 10:23:23 -0500 (CDT) Cc: karl@Mcs.Net, koshy@india.hp.com, freebsd-hackers@freebsd.org In-Reply-To: from "Darren Reed" at Sep 12, 96 08:06:14 pm X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > > In some mail from Karl Denninger, sie said: > > > > > > > > >>>> "Karl Denninger" writes > > > > > > Hi Karl, > > > > > > > This changes the startup connection timeout to 10 seconds, which should be > > > > more than enough on the Internet of today to prevent dropped links. 75 > > > > seconds is only needed if you're running across two pieces of wet string. > > > > > > I've seen very large startup times when attempting to connect to sundry > > > corners of the globe (> 30-45 seconds). I think reducing the connection > > > timeout isn't a good idea as it would impact the ability of FreeBSD to > > > connect to distant sites / sites accessible thru the congested links. > > > > > > Koshy > > > > Well, unless someone has a better idea, you can choose between that problem > > and the SYN floods..... > > > > I haven't seen that kind of connect time in a long, long while on the net > > backbones... but then again, I may be better connected here than most. > > I heard someone mention 25% packet loss on an Australia-USA line (packets were > being dropped in the USA). With a 25% packet loss rate you've got bigger problems. -- -- Karl Denninger (karl@MCS.Net)| MCSNet - The Finest Internet Connectivity http://www.mcs.net/~karl | T1 from $600 monthly; speeds to DS-3 available | 23 Chicagoland Prefixes, 13 ISDN, much more Voice: [+1 312 803-MCS1 x219]| Email to "info@mcs.net" WWW: http://www.mcs.net/ Fax: [+1 312 248-9865] | Home of Chicago's only FULL Clarinet feed!