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Date:      Fri, 17 Mar 2000 13:51:42 -0800 (PST)
From:      fbsd-dave <fbsddave@mrcaffeine.com>
To:        Michael Robinson <robinson@netrinsics.com>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: How to force remote reboot of 3.4-Release?
Message-ID:  <Pine.BSF.4.21.0003171346180.46645-100000@boris.netgate.net>
In-Reply-To: <Pine.BSF.4.05.10003170927530.19874-100000@shell.uniserve.ca>

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Have you considered a remote power control device?

Like:
  http://www.baytechdcd.com/
  http://www.apcc.com/products/pdu.cfm

Dave

On Fri, 17 Mar 2000, Tom wrote:

> On Fri, 17 Mar 2000, Michael Robinson wrote:
> 
> > Last night, I was running a very large Postgresql query on one of my 
> > colocated development servers when all of a sudden the session completely
> > froze.  Since then, I can get TCP connections to all the open ports, but
> > they just hang with no services ever coming up.  Ping works fine.
> > 
> > I assume this is due to one of FreeBSD's resource starvation features.
> > What I'd like to know is, once the server gets into this state, is it 
> > possible to exploit any of the other resource starvation features in 
> > 3.4-Release to force a reboot?  Getting access to the server is a big 
> > pain in the rear, so I'd like to avoid the trip if at all possible.
> > 
> > Would a SYN flood do it?  If so, does anyone know of a good SYN flood tool?
> > 
> > 	-Michael Robinson
> 
>   It sounds like a disk hang actually.  If you had access to the console
> you'd probably see various disk warnings/errors.
> 
>   There are no known remote reboot exploits.
> 
> 
> Tom



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