From owner-freebsd-questions@FreeBSD.ORG Tue Feb 18 23:55:47 2014 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id BEF154FF for ; Tue, 18 Feb 2014 23:55:47 +0000 (UTC) Received: from wonkity.com (wonkity.com [67.158.26.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 6DAF0159E for ; Tue, 18 Feb 2014 23:55:47 +0000 (UTC) Received: from wonkity.com (localhost [127.0.0.1]) by wonkity.com (8.14.8/8.14.8) with ESMTP id s1INtj4T052812 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 18 Feb 2014 16:55:46 -0700 (MST) (envelope-from wblock@wonkity.com) Received: from localhost (wblock@localhost) by wonkity.com (8.14.8/8.14.8/Submit) with ESMTP id s1INtj10052809; Tue, 18 Feb 2014 16:55:45 -0700 (MST) (envelope-from wblock@wonkity.com) Date: Tue, 18 Feb 2014 16:55:45 -0700 (MST) From: Warren Block To: "Ronald F. Guilmette" Subject: Re: Semi-urgent: Disable NTP replies? In-Reply-To: <2505.1392764000@server1.tristatelogic.com> Message-ID: References: <2505.1392764000@server1.tristatelogic.com> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (wonkity.com [127.0.0.1]); Tue, 18 Feb 2014 16:55:46 -0700 (MST) Cc: freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Feb 2014 23:55:47 -0000 On Tue, 18 Feb 2014, Ronald F. Guilmette wrote: > I didn't realize it until today, but the games people are out there > playing nowadays with respect to NTP are now DRASTICALLY affecting me, > so much so that essentially 100% of my outbound bandwidth was being > used up just in sending out NTP reply packets... something that I > had never even intended to do in the first place! Please join the freebsd-security mailing list. There was an announcement there over a month ago. What little traffic there is on that list tends to be important.