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Date:      Mon, 9 Oct 2000 11:59:37 -0700 (PDT)
From:      Ray Gilstrap <ratogi@eecs.berkeley.edu>
To:        Vivek Khera <khera@kciLink.com>
Cc:        stable@FreeBSD.ORG
Subject:   Re: effective use of serial console
Message-ID:  <Pine.BSF.4.21.0010091110510.18944-100000@ratogi.arc.nasa.gov>
In-Reply-To: <14817.64539.984808.362682@yertle.kciLink.com>

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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/
: 
: 
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: 




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