Date: Fri, 17 Mar 2000 09:29:08 -0800 (PST) From: Tom <tom@uniserve.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.4.05.10003170927530.19874-100000@shell.uniserve.ca> In-Reply-To: <200003170213.KAA26062@netrinsics.com>
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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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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