From owner-freebsd-net@FreeBSD.ORG Tue Jun 1 17:15:14 2004 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2C3E316A4CE for ; Tue, 1 Jun 2004 17:15:14 -0700 (PDT) Received: from mtaw4.prodigy.net (mtaw4.prodigy.net [64.164.98.52]) by mx1.FreeBSD.org (Postfix) with ESMTP id 18E8743D31 for ; Tue, 1 Jun 2004 17:15:14 -0700 (PDT) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (15d9054e0b8c60845bbe8077022118cc@adsl-67-115-73-128.dsl.lsan03.pacbell.net [67.115.73.128]) by mtaw4.prodigy.net (8.12.10/8.12.10) with ESMTP id i520F8fY022478; Tue, 1 Jun 2004 17:15:08 -0700 (PDT) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id D199F52364; Tue, 1 Jun 2004 17:15:07 -0700 (PDT) Date: Tue, 1 Jun 2004 17:15:07 -0700 From: Kris Kennaway To: Mike Silbersack Message-ID: <20040602001507.GA7701@xor.obsecurity.org> References: <20040601120238.B44353@atlantis.atlantis.dp.ua> <20040601120412.B63021@odysseus.silby.com> <20040601231213.GA3894@xor.obsecurity.org> <20040601185912.I83544@odysseus.silby.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="LZvS9be/3tNcYl/X" Content-Disposition: inline In-Reply-To: <20040601185912.I83544@odysseus.silby.com> User-Agent: Mutt/1.4.2.1i cc: Dmitry Pryanishnikov cc: freebsd-net@freebsd.org cc: Kris Kennaway Subject: Re: net.inet.ip.portrange.randomized=1 hurts X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Jun 2004 00:15:14 -0000 --LZvS9be/3tNcYl/X Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jun 01, 2004 at 07:03:27PM -0500, Mike Silbersack wrote: >=20 > On Tue, 1 Jun 2004, Kris Kennaway wrote: >=20 > > On Tue, Jun 01, 2004 at 12:05:35PM -0500, Mike Silbersack wrote: > > > Sounds like something that should be dealt with on the server's end. = Some > > > of the changes we've made in 5.x might fix the problem, but I don't t= hink > > > anyone has looked into that specific case. > > > > Is this also the cause of the mysql server connection failures > > reported on freebsd-stable@? > > > > Kris >=20 > Yes, it is possible that random ephemeral port allocation could cause the > MySQL problems, if the connection rate is extremely high. If it's > happening, it would show up in the form of sockets stuck in the SYN_SENT > state. If one of the people reporting problems can verify it, I could > backport the changes I made to handle this edgecase in 5.x. I suggest posting to stable@ Kris --LZvS9be/3tNcYl/X Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD4DBQFAvRwLWry0BWjoQKURApoqAJjgpj8bpSSFh1PbwE1Aw1LJVpp8AJ4nc1gO p4bYY6kmLB3GGJdViu9xcQ== =V6cq -----END PGP SIGNATURE----- --LZvS9be/3tNcYl/X--