From owner-freebsd-stable@FreeBSD.ORG Sat Apr 20 23:08:59 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 0FBD924F for ; Sat, 20 Apr 2013 23:08:59 +0000 (UTC) (envelope-from gondim@bsdinfo.com.br) Received: from zeus.linuxinfo.com.br (zeus.linuxinfo.com.br [186.193.48.13]) by mx1.freebsd.org (Postfix) with ESMTP id 8D1C71218 for ; Sat, 20 Apr 2013 23:08:57 +0000 (UTC) Received: from zeus.linuxinfo.com.br (zeus.linuxinfo.com.br [127.0.0.1]) by zeus.linuxinfo.com.br (Postfix) with ESMTP id 09782466A45D; Sat, 20 Apr 2013 20:06:44 -0300 (BRT) X-Virus-Scanned: amavisd-new at zeus.linuxinfo.com.br Received: from zeus.linuxinfo.com.br ([127.0.0.1]) by zeus.linuxinfo.com.br (zeus.linuxinfo.com.br [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id v8VKXveFYzIO; Sat, 20 Apr 2013 20:06:40 -0300 (BRT) Received: from MacBook-de-Gondim-2.local (unknown [186.193.54.69]) by zeus.linuxinfo.com.br (Postfix) with ESMTPSA id 3D967466A458; Sat, 20 Apr 2013 20:06:36 -0300 (BRT) Message-ID: <51731FFE.5020304@bsdinfo.com.br> Date: Sat, 20 Apr 2013 20:08:46 -0300 From: Marcelo Gondim User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130328 Thunderbird/17.0.5 MIME-Version: 1.0 To: Eugene Grosbein Subject: Re: Possible DoS in mpd 5.6 pppoe server References: <5172965A.9080600@bsdinfo.com.br> <5172BDDD.4010509@rdtc.ru> <5172CFB2.3010708@bsdinfo.com.br> <5172D14D.8040009@rdtc.ru> In-Reply-To: <5172D14D.8040009@rdtc.ru> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 20 Apr 2013 23:08:59 -0000 Em 20/04/13 14:33, Eugene Grosbein escreveu: > On 21.04.2013 00:26, Marcelo Gondim wrote: > >>> You seem to use dummynet and the problem is not in mpd/pppoe code, >>> it's it the dummynet code. Look at http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/162558 >>> for workarounds. >> Ok :) I will try this: >> >> - net.isr.bindthreads=1 in /boot/loader.conf; >> - net.isr.direct=1 and net.isr.direct_force=1 in /etc/sysctl.conf > For 9.x and newer, net.isr.XXX knobs names have changed but defaults are fine - > if you have not messed them, you should be OK. > > > Eugene, Does FreeBSD 8.3-STABLEis best for this use or this problem also occurs in 8.x? Best regards, Gondim