From owner-freebsd-current Sat Apr 10 13:39:22 1999 Delivered-To: freebsd-current@freebsd.org Received: from apollo.backplane.com (apollo.backplane.com [209.157.86.2]) by hub.freebsd.org (Postfix) with ESMTP id 2CD11153A9 for ; Sat, 10 Apr 1999 13:39:20 -0700 (PDT) (envelope-from dillon@apollo.backplane.com) Received: (from dillon@localhost) by apollo.backplane.com (8.9.3/8.9.1) id NAA01262; Sat, 10 Apr 1999 13:37:06 -0700 (PDT) (envelope-from dillon) Date: Sat, 10 Apr 1999 13:37:06 -0700 (PDT) From: Matthew Dillon Message-Id: <199904102037.NAA01262@apollo.backplane.com> To: Amancio Hasty Cc: Dmitry Valdov , Brian Feldman , freebsd-current@FreeBSD.ORG Subject: Re: DoS from local users (fwd) References: <199904102030.NAA08796@rah.star-gate.com> Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG : :It should be possible to prevent a user from hogging a system if the system's :naive scheduler is improved. : : Amancio No, it isn't. For a very simple reason: The resources users need to do real work are very similar to the resources users need to hog the system. Saying that the system should somehow be able to magically make the distinction between the two is a pipedream. It takes a human to make the distinction. Short of restricting the resources you give to users to the point where they can't even start a mail or news client, there is just no way to prevent said users from loading down the machine if they choose to. -Matt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message