From owner-freebsd-questions Thu Feb 27 11: 3: 5 2003 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3306E37B401 for ; Thu, 27 Feb 2003 11:03:04 -0800 (PST) Received: from grumpy.dyndns.org (user-24-214-34-52.knology.net [24.214.34.52]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3C60843F93 for ; Thu, 27 Feb 2003 11:03:03 -0800 (PST) (envelope-from dkelly@grumpy.dyndns.org) Received: from grumpy.dyndns.org (localhost [127.0.0.1]) by grumpy.dyndns.org (8.12.7/8.12.7) with ESMTP id h1RJ2tM7039203; Thu, 27 Feb 2003 13:02:55 -0600 (CST) (envelope-from dkelly@grumpy.dyndns.org) Received: (from dkelly@localhost) by grumpy.dyndns.org (8.12.7/8.12.7/Submit) id h1RJ2rPG039202; Thu, 27 Feb 2003 13:02:53 -0600 (CST) Date: Thu, 27 Feb 2003 13:02:53 -0600 From: David Kelly To: Tomazo Lujiano Cc: freebsd-questions@FreeBSD.ORG Subject: Re: FreeBSD sysctls Message-ID: <20030227190253.GB39119@grumpy.dyndns.org> References: <20030227183804.20910.qmail@fastermail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030227183804.20910.qmail@fastermail.com> User-Agent: Mutt/1.4i Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, Feb 28, 2003 at 02:38:04AM +0800, Tomazo Lujiano wrote: > Hello, FreeBSD hackers! > And here is my problem: > I use FreeBSD-4.7 Stable at home. My machine also provides an Internet access > in our local network. That's why I set different firewalls, ipfilters and other > stuff to provide the security in our private net. So, I'd also like to defend > my server from OS-detectors, such as nmap and some others and change TCP-stack as well. > And what I do: > sysctl kern.ostype > kern.ostype: FreeBSD > Well, everything is clear. Then I type: > sysctl kern.ostype=Lotus_Notes/DOMINO > but see: > sysctl: oid 'kern.ostype' is read only Nobody is going to be able to read kern.ostype from your system unless they have already rooted you. -- David Kelly N4HHE, dkelly@hiwaay.net ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message