Date: Thu, 14 Feb 2002 11:20:40 -0800 (PST) From: Kip Macy <kmacy@netapp.com> To: "PSI, Mike Smith" <mlsmith@mitre.org> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Kernel after halt issued Message-ID: <Pine.GSO.4.10.10202141119180.12277-100000@orbit> In-Reply-To: <3C6C0965.206509B4@mitre.org>
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This has already been discussed (link off of Slashdot) and works under linux for packet filtering. I have no idea if it could be done under FreeBSD. -Kip On Thu, 14 Feb 2002, PSI, Mike Smith wrote: > I just heard someone say that they believed that the kernel was still > running after a halt is issued, but just cannot (won't?) create any > processes. So while I realize this person may not know what they are > talking about (and am showing my own ignorance for even listening), the > question is... > > Is the kernel still running after a halt? > > If it is, then there are very interesting possibilities for building in > very specific capabilities in the kernel, then under "halt" condition > have those capabilities available. AND NOTHING ELSE! Interesting from a > security standpoint. Plus it would not require to to strip your system > down to bare bones to eliminate holes. You could bring it up to a fully > capable system at any time it was necessary. > > So Is the kernel still running after a halt? If so, has anyone found a > way to take advantage of this? > > (Not THE) Mike Smith > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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