From owner-freebsd-questions@FreeBSD.ORG Sun Dec 14 13:23:25 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5380A1065686 for ; Sun, 14 Dec 2008 13:23:25 +0000 (UTC) (envelope-from 240olofsson@telia.com) Received: from av9-1-sn2.hy.skanova.net (av9-1-sn2.hy.skanova.net [81.228.8.179]) by mx1.freebsd.org (Postfix) with ESMTP id 12CBB8FC16 for ; Sun, 14 Dec 2008 13:23:24 +0000 (UTC) (envelope-from 240olofsson@telia.com) Received: by av9-1-sn2.hy.skanova.net (Postfix, from userid 502) id 179A437F4D; Sun, 14 Dec 2008 14:02:35 +0100 (CET) Received: from smtp4-1-sn2.hy.skanova.net (smtp4-1-sn2.hy.skanova.net [81.228.8.92]) by av9-1-sn2.hy.skanova.net (Postfix) with ESMTP id E6A5C37F61 for ; Sun, 14 Dec 2008 14:02:34 +0100 (CET) Received: from [192.168.1.31] (90-230-141-139-no41.tbcn.telia.com [90.230.141.139]) by smtp4-1-sn2.hy.skanova.net (Postfix) with ESMTP id C66FA37E44 for ; Sun, 14 Dec 2008 14:02:34 +0100 (CET) Message-ID: <494503EA.4060505@telia.com> Date: Sun, 14 Dec 2008 14:02:34 +0100 From: Roger Olofsson <240olofsson@telia.com> User-Agent: Thunderbird 2.0.0.18 (Windows/20081105) MIME-Version: 1.0 Cc: User Questions References: <4945035C.6040401@telia.com> In-Reply-To: <4945035C.6040401@telia.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: Canonical way for DHCP->IP->/etc/hosts X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: raggen@raggens.net List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 14 Dec 2008 13:23:25 -0000 Roger Olofsson skrev: > Dear mailing list, > > I am sorry if this question has been asked over and over again - however > the htdig search interface for the lists is somewhat shaky and gives > referrer errors for me. > > Pre-conditions. > Dualhomed firewalled FreeBSD7.1. One nic is LAN and the other dynamical > IP from ISP. > > Question: What is the canonical way for catching the IP address from a > DHCP assigned nic (from ISP that doesn't set hostname) and put the IP > into /etc/hosts with a hostname? > > Reason for asking > Firewall rules needs refreshing after new IP > > Possible answers: > Create dhcp-exit-hooks (undocumented?) in /etc like so: > > #!/bin/sh > > if [ ! -z "$new_ip_address" ]; then > IP=`ifconfig WAN | grep 'inet' | grep -v 'inet6' | cut -f 2 -d ' '` > if [ ! -z "$IP" ]; then > echo "$IP wan.local.domain wan" >> /etc/hosts > > > > fi > fi > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > > > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.176 / Virus Database: 270.9.17/1847 - Release Date: 2008-12-13 16:56 > Sorry I mean dhclient-exit-hooks not dhcp-exit-hooks.... /R