From owner-freebsd-stable Mon Oct 9 12: 3:18 2000 Delivered-To: freebsd-stable@freebsd.org Received: from ratogi.arc.nasa.gov (ratogi.arc.nasa.gov [128.102.132.244]) by hub.freebsd.org (Postfix) with ESMTP id 5640037B66D for ; Mon, 9 Oct 2000 12:03:13 -0700 (PDT) Received: from localhost (ratogi@localhost) by ratogi.arc.nasa.gov (8.11.0/8.11.0) with ESMTP id e99Ixbo20094; Mon, 9 Oct 2000 11:59:37 -0700 (PDT) (envelope-from ratogi@eecs.berkeley.edu) X-Authentication-Warning: ratogi.arc.nasa.gov: ratogi owned process doing -bs Date: Mon, 9 Oct 2000 11:59:37 -0700 (PDT) From: Ray Gilstrap X-Sender: ratogi@ratogi.arc.nasa.gov To: Vivek Khera Cc: stable@FreeBSD.ORG Subject: Re: effective use of serial console In-Reply-To: <14817.64539.984808.362682@yertle.kciLink.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi, If you have a little bit of a budget for this, you might want to think about getting a network power switch. Then if all else fails, you can at least log into the NPS via Ethernet or serial and cycle the AC power on the outlet that the offending machine is plugged into. If you don't already have one, you might also consider a small terminal server router with a handful of serial lines. So as long as you have network (modem) access to the terminal server, you can ssh (dial) into it and launch terminal sessions over the serial lines. Makes life a little easier when you have several serial-connected devices. I am familiar with the NPS-115 from Western Telematic (wti.com) and the Cisco 2511 terminal server, but there are no doubt other alternatives that work just as well. Sorry if this is a bit off-topic for this list. Ray == RAY GILSTRAP ====================================================== UC Berkeley Electrical Engineering/ ratogi@eecs.berkeley.edu NASA Research and Education Network http://www.ratogi.net ====================================================================== On Mon, 9 Oct 2000, Vivek Khera wrote: : I've got a stack of servers at a co-lo facililty about 35 minutes : drive from here (non-rush hour...) and I'd like to make best use of : the serial console feature of FreeBSD. : : So far with my in-office experiments, I have been able to do just : about everything I need. My only question is how can I force a reboot : similar to the CTL-ALT-DEL key sequence on a local console? I was : hoping a BREAK signal would do it, but the best I can do is make it : drop to a debugger. I don't really need debugger support in my : production kernels, but I guess if that's the only way to accomplish : it... : : How do others set this up? I guess I'm really looking for a really : fail-safe serial console. : : Thanks. : : -- : =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= : Vivek Khera, Ph.D. Khera Communications, Inc. : Internet: khera@kciLink.com Rockville, MD +1-301-545-6996 : GPG & MIME spoken here http://www.khera.org/~vivek/ : : : To Unsubscribe: send mail to majordomo@FreeBSD.org : with "unsubscribe freebsd-stable" in the body of the message : To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message