From owner-freebsd-doc Sun Aug 5 12:25:58 2001 Delivered-To: freebsd-doc@freebsd.org Received: from cartman.geekhouse.net (valve.dub.net [64.81.252.98]) by hub.freebsd.org (Postfix) with ESMTP id 7656837B401 for ; Sun, 5 Aug 2001 12:25:55 -0700 (PDT) (envelope-from mij@soupnazi.org) Received: by cartman.geekhouse.net (Postfix, from userid 1000) id 026F5326A; Sun, 5 Aug 2001 12:25:54 -0700 (PDT) Date: Sun, 5 Aug 2001 12:25:54 -0700 From: Jim Mock To: John Murphy Cc: doc@freebsd.org Subject: Re: Minor changes for Handbook Chapter 9 Message-ID: <20010805122554.B92283@cartman.geekhouse.net> Reply-To: mij@soupnazi.org References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.3.20i Sender: owner-freebsd-doc@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Sun, 05 Aug 2001 at 14:39:27 +0100, John Murphy wrote: > http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html > > 9.4 The Configuration File > Last sentence in the paragraph below the list of i386 cpu types: > If you are unsure which type your CPU use, > of your CPU type, > > Near the end: > pseudo-device tun # Packet tunnel. > > This is used by the userland PPP software. The number after tun specifies > |A| > ... > > pseudo-device pty # Pseudo-ttys (telnet etc) > > This is a ``pseudo-terminal'' or simulated login port. It is used by > incoming telnet and rlogin sessions, xterm, and some other applications > such as emacs. The number indicates the number of ptys to create. > |A| ^ after pty > ... > > pseudo-device bpf # Berkeley packet filter > > This is the Berkeley Packet Filter. This pseudo-device allows network > interfaces to be placed in promiscuous mode, capturing every packet on > a broadcast network (e.g., an Ethernet). These packets can be captured > to disk and or examined with the tcpdump(1) program. > > Perhaps add a note here: > Note: The bpf pseudo-device is also used by the dhclient(8) program > to obtain the IP address of the default-router etc. Leave it > uncommented if you connect to a network using DHCP. > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-trouble.html > 9.6 If Something Goes Wrong > > First Note: > The proper command to ``unlock'' the kernel file that make installs > (in order to move another kernel back permanently) is: > > # chflags noschg /kernel > > An addition perhaps: > If you find you can't do this, you are probably running at a securelevel(8) > greater than zero. Edit the kern_securelevel entry in /etc/rc.conf to > kern_securelevel="-1" and reboot. Remember to change it back when you're > happy with your new kernel. Thanks again. I just committed this stuff. - jim -- - jim mock tech writer | iXsystems, Inc. - - http://soupnazi.org/ work: jim@ixsystems.net | jim@FreeBSD.org - To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-doc" in the body of the message