From owner-freebsd-net@FreeBSD.ORG Thu Jul 9 18:33:20 2009 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AA1011065693; Thu, 9 Jul 2009 18:33:20 +0000 (UTC) (envelope-from prvs=1434654274=brian@Awfulhak.org) Received: from idcmail-mo1so.shaw.ca (idcmail-mo1so.shaw.ca [24.71.223.10]) by mx1.freebsd.org (Postfix) with ESMTP id 623C18FC0C; Thu, 9 Jul 2009 18:33:20 +0000 (UTC) (envelope-from prvs=1434654274=brian@Awfulhak.org) Received: from pd4ml2so-ssvc.prod.shaw.ca ([10.0.141.136]) by pd2mo1so-svcs.prod.shaw.ca with ESMTP; 09 Jul 2009 12:04:54 -0600 X-Cloudmark-SP-Filtered: true X-Cloudmark-SP-Result: v=1.0 c=1 a=4Z0QP1WVBuUwHZGQKe2N1A==:17 a=85N1-lAfAAAA:8 a=8pif782wAAAA:8 a=MMwg4So0AAAA:8 a=6I5d2MoRAAAA:8 a=pLs50JeHo0lRBKzncFcA:9 a=DQ_Xb_9UxnLdEZxVoNwA:7 a=1fBJIe8b65rIWibaRHQE_u0F38MA:4 a=EQTM5Oi4JLsA:10 a=u1lCIr8n24MA:10 a=WJ3hkfHDukgA:10 a=SV7veod9ZcQA:10 Received: from unknown (HELO store.lan.Awfulhak.org) ([174.7.23.140]) by pd4ml2so-dmz.prod.shaw.ca with ESMTP; 09 Jul 2009 12:04:50 -0600 Received: from store.lan.Awfulhak.org (localhost.localdomain [127.0.0.1]) by localhost (Email Security Appliance) with SMTP id 81B19C433AC_A56317DB; Thu, 9 Jul 2009 18:05:49 +0000 (GMT) Received: from gw.Awfulhak.org (gw.lan.Awfulhak.org [172.16.0.1]) by store.lan.Awfulhak.org (Sophos Email Appliance) with ESMTP id 007B1C460F8_A563177F; Thu, 9 Jul 2009 18:05:42 +0000 (GMT) Received: from localhost (brian@gw.lan.Awfulhak.org [172.16.0.1]) by gw.Awfulhak.org (8.14.3/8.14.3) with ESMTP id n69I3A80021271; Thu, 9 Jul 2009 11:03:11 -0700 (PDT) (envelope-from brian@Awfulhak.org) Date: Thu, 9 Jul 2009 11:03:23 -0700 From: Brian Somers To: David Malone Message-ID: <20090709110323.6106a0f3@Awfulhak.org> In-Reply-To: <200907091020.aa42546@walton.maths.tcd.ie> References: <20090702084608.GA59311@roberto-al.eurocontrol.fr> <200907091020.aa42546@walton.maths.tcd.ie> X-Mailer: Claws Mail 3.7.2 (GTK+ 2.16.4; i386-portbld-freebsd8.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Edwin Groothuis , freebsd-net@freebsd.org Subject: Re: NTP - default /etc/ntp.conf X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Jul 2009 18:33:21 -0000 On Thu, 09 Jul 2009 10:20:29 +0100, David Malone wrote: > The NTP pool guys have set up our vendor domain. I'd like to commit > the patch below to ntp.conf. It does the following: > > 1) Uses our vendor domain at the pool. > 2) Points people at the pool website and encourages > people to provide a server in the pool (as a > courtesy to the pool guys). > 3) Fixes a spelling. > 4) Comments out the local clock and includes a link > to documentation for use of the local clock on > the ntp.org site. > > If there are no objections, I'll ask re@ for permission to commit > this. > > David. > > Index: ntp.conf > =================================================================== > --- ntp.conf (revision 195484) > +++ ntp.conf (working copy) > @@ -13,19 +13,22 @@ > # > # The following three servers will give you a random set of three > # NTP servers geographically close to you. > -# See http://en.wikipedia.org/wiki/NTP_pool for details. > +# See http://www.pool.ntp.org/ for details. Note, the pool encourages > +# users with a static IP and good upstream NTP servers to add a server > +# to the pool. See http://www.pool.ntp.org/join.html if you are interested. > # > # The option `iburst' is used for faster initial synchronisation. > # The option `maxpoll 9' is used to prevent PLL/FLL flipping on FreeBSD. > # > -server 0.pool.ntp.org iburst maxpoll 9 > -server 1.pool.ntp.org iburst maxpoll 9 > -server 2.pool.ntp.org iburst maxpoll 9 > +server 0.freebsd.pool.ntp.org iburst maxpoll 9 > +server 1.freebsd.pool.ntp.org iburst maxpoll 9 > +server 2.freebsd.pool.ntp.org iburst maxpoll 9 > +#server 3.freebsd.pool.ntp.org iburst maxpoll 9 > > # > # If you want to pick yourself which country's public NTP server > # you want sync against, comment out the above servers, uncomment > -# the next ones and replace CC with the country's abbrevation. > +# the next ones and replace CC with the country's abbreviation. > # Make sure that the hostnames resolve to a proper IP address! > # > # server 0.CC.pool.ntp.org iburst maxpoll 9 > @@ -50,10 +53,12 @@ > #restrict 127.127.1.0 > > # > -# If we lose sync against all configured servers, the NTP clients > -# syncing against this server will lose sync too. To overcome this, > -# we will act as a stratum 10 server with our own internal clock > -# so that everybody at least will have the same time as we have. > +# If a server loses sync with all upstream servers, NTP clients > +# no longer follow that server. The local clock can be configured > +# to provide a time source when this happens, but it should usually > +# be configured on just one server on a network. For more details see > +# http://support.ntp.org/bin/view/Support/UndisciplinedLocalClock > +# The use of Orphan Mode may be preferable. > # > -server 127.127.1.0 > -fudge 127.127.1.0 stratum 10 > +#server 127.127.1.0 > +#fudge 127.127.1.0 stratum 10 I'd tend to suggest stratum 13 so that the inattentive admin doesn't spread his potentially dodgy clock info too far when he tries uncommenting the above.... otherwise I (rather subjectively) agree with this change :) -- Brian Somers Don't _EVER_ lose your sense of humour !