From owner-freebsd-stable Fri Jun 9 18:25:37 2000 Delivered-To: freebsd-stable@freebsd.org Received: from priv-edtnes11-hme0.telusplanet.net (edtnes11.telus.net [199.185.220.111]) by hub.freebsd.org (Postfix) with ESMTP id EF0BA37BDD5 for ; Fri, 9 Jun 2000 18:25:27 -0700 (PDT) (envelope-from djfast@telus.net) Received: from alpha ([216.232.50.146]) by priv-edtnes11-hme0.telusplanet.net (InterMail vM.4.01.02.11 201-229-116-111) with SMTP id <20000610012523.QMQ625.priv-edtnes11-hme0.telusplanet.net@alpha> for ; Fri, 9 Jun 2000 19:25:23 -0600 From: "Donald Fast" To: Subject: RE: APC Back-UPS Pro Date: Fri, 9 Jun 2000 18:25:10 -0700 Message-ID: <000101bfd27a$b7f6a160$9232e8d8@bc.hsia.telus.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2377.0 In-Reply-To: <002b01bfd252$586b4700$b8209fc0@campbellmithun.com> Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > -----Original Message----- > From: owner-freebsd-stable@FreeBSD.ORG > [mailto:owner-freebsd-stable@FreeBSD.ORG]On Behalf Of Shawn Barnhart > Sent: Friday, June 09, 2000 1:36 PM > To: stable@FreeBSD.ORG > Subject: Re: APC Back-UPS Pro > > > ----- Original Message ----- > From: "Doug White" > > | The problem with this is doing it securely. You can have one monitor > | machine but having some automated way of telling the others to shutdown > | that can't be tricked is a tough problem. ssh with a null-passphrase RSA > | key is about as close as you can get, but that doesn't keep root on one > | machine from telling the others to shutdown, but that may not be a problem > | in your environment :) > > Does any of the UPS stuff on FreeBSD do it securely? > > It seems like it would be safer for a client machine to poll the > UPS-monitoring server for power status vs. having the monitoring server > alert its clients to do something like shut down. > > On the more sophisticated end you could do it as an SNMP trap, or you could > just write the UPS status to a file on the monitoring box and the clients > could fetch the status periodically and make their own decisions about what > to do when the power went off. > or you could get the multi-computer option http://www.apcc.com/products/management/shareups_smartslot_spec.cfm and then each machine can decide on its onw To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message