From owner-freebsd-questions Thu Aug 13 13:13:53 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA04122 for freebsd-questions-outgoing; Thu, 13 Aug 1998 13:13:53 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from resnet.uoregon.edu (resnet.uoregon.edu [128.223.144.32]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id NAA04110 for ; Thu, 13 Aug 1998 13:13:50 -0700 (PDT) (envelope-from dwhite@resnet.uoregon.edu) Received: from localhost (dwhite@localhost) by resnet.uoregon.edu (8.8.5/8.8.8) with SMTP id NAA26729; Thu, 13 Aug 1998 13:12:24 -0700 (PDT) (envelope-from dwhite@resnet.uoregon.edu) Date: Thu, 13 Aug 1998 13:12:24 -0700 (PDT) From: Doug White To: Johann Visagie cc: "Scott I. Remick" , freebsd-questions@FreeBSD.ORG Subject: Re: UPS signal from NT? In-Reply-To: <19980813160156.B3834@cityip.co.za> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 13 Aug 1998, Johann Visagie wrote: > On Wed, 12 Aug 1998 at 16:44 SAT, Scott I. Remick wrote: > > > > We have a large UPS hooked up to our NT server. The UPS only has one > > serial port and it is currently set up to signal a shutdown on the NT > > server. Without buying a separate UPS for our FreeBSD server, is there > > some way to get a signal from the NT server that would trigger a shutdown > > on the FreeBSD box also? > > Related question: > > What would be the most elegant way for one FreeBSD box (running upsd) to > signal another that it should shut down? > > Oh sure, I can also think of a number of solutions, but I'm still looking for > one that's reasonably foolproof/secure, and that doesn't *feel* like a hack. The biggest issue is security -- you don't want someone running around telling your servers to shut down. :) The way that comes to mind first is ssh with a null RSA passphrase, but if someone cracks root (or whatever user is logging in as) they have free access to roam around. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message