From owner-freebsd-isp@FreeBSD.ORG Mon Mar 31 09:22:18 2003 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2E05337B401 for ; Mon, 31 Mar 2003 09:22:18 -0800 (PST) Received: from bilver.wjv.com (user38.net339.fl.sprint-hsd.net [65.40.24.38]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1889B43F3F for ; Mon, 31 Mar 2003 09:22:17 -0800 (PST) (envelope-from bv@wjv.com) Received: from bilver.wjv.com (localhost.wjv.com [127.0.0.1]) by bilver.wjv.com (8.12.6/8.12.6) with ESMTP id h2VHM81g021710 for ; Mon, 31 Mar 2003 12:22:14 -0500 (EST) (envelope-from bv@wjv.com) Received: (from bv@localhost) by bilver.wjv.com (8.12.6/8.12.6/Submit) id h2VHM8Vj021709 for freebsd-isp@freebsd.org; Mon, 31 Mar 2003 12:22:08 -0500 (EST) Date: Mon, 31 Mar 2003 12:22:07 -0500 From: Bill Vermillion To: freebsd-isp@freebsd.org Message-ID: <20030331172207.GA21589@wjv.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: W.J.Vermillion / Orlando - Winter Park ReplyTo: bv@wjv.com User-Agent: Mutt/1.5.1i X-Spam-Status: No, hits=-3.2 required=5.0 tests=IN_REP_TO,NOSPAM_INC,QUOTED_EMAIL_TEXT,REFERENCES, SPAM_PHRASE_00_01,USER_AGENT,USER_AGENT_MUTT version=2.43 Subject: Re: ntp / ntpdate X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Mar 2003 17:22:19 -0000 Ashes to ashes, and DOS to DOS Arie J. Gerszt was heard to say on or about Mon, Mar 31, 2003 at 19:06 : > Hi List > How do you update your servers with ntp? I have seen ntpd, > ntpdate, xntpd and are a bit confused. Aside that, ntpdate > never seems to work ( get the offset, but the time stays the > same, securelevel -2, done as root). Read man 8 init . You will see that if secure level is set above 1 that time changes are restricted to less than one second. You just may need to run your ntp programs more often to ensure you stay within that time window. I run my hourly and normally get only about .2 or .3 second offset. iNTEL based HW clocks are not known for long time stability. Bill -- Bill Vermillion - bv @ wjv . com