From owner-freebsd-current@FreeBSD.ORG Thu Nov 27 19:39:35 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EAD0516A4CE for ; Thu, 27 Nov 2003 19:39:35 -0800 (PST) Received: from siralan.org (12-223-227-231.client.insightbb.com [12.223.227.231]) by mx1.FreeBSD.org (Postfix) with ESMTP id EAE6643FAF for ; Thu, 27 Nov 2003 19:39:34 -0800 (PST) (envelope-from mikes@siralan.org) Received: from siralan.org (localhost [127.0.0.1]) by siralan.org (8.12.10/8.12.10) with ESMTP id hAS3dYss001849; Thu, 27 Nov 2003 22:39:34 -0500 (EST) (envelope-from mikes@siralan.org) Received: (from mikes@localhost) by siralan.org (8.12.10/8.12.10/Submit) id hAS3dXV3001848; Thu, 27 Nov 2003 22:39:33 -0500 (EST) (envelope-from mikes) From: "Michael L. Squires" Message-Id: <200311280339.hAS3dXV3001848@siralan.org> To: n.b@myrealbox.com (Guy Van Sanden) Date: Thu, 27 Nov 2003 22:39:33 -0500 (EST) In-Reply-To: <1069948043.2861.28.camel@cronos.home.vsb> from "Guy Van Sanden" at Nov 27, 2003 04:47:23 PM X-Mailer: ELM [version 2.5 PL6] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit cc: FreeBSD current mailing list Subject: Re: 5.x DOS against NFS server X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Nov 2003 03:39:36 -0000 Guy Van Sanden > > I just ran nmap ... > Nessus has the same effect. When running "nmap (nmap 2.53 on a 4.9-STABLE box)) against a 5.2-BETA host on the host I see Nove 27 13:06:24 mikes sm-mta[483]: NOQUEUE: SYSERR(root): getrequests: accept: Software caused connection abort Nove 27 13:06:24 mikes nfsd[392]: accept failed: Software caused connection abort between messages about response rate limits to nmap queries. On the client running 5.1-CURRENT with "bonnie" using a 100MB file on a volume NFS mounted from the 5.2-BETA server there are no log messages and no obvious error messages; "bonnie" finishes normally. Mike Squires