Date: Mon, 18 May 2015 13:51:33 -0700 From: Charles Swiger <cswiger@mac.com> To: Jeffry Killen <jekillen@prodigy.net> Cc: FreeBSD - <freebsd-questions@freebsd.org> Subject: Re: looking at manual page for rc.conf Message-ID: <7DCD8F5E-4995-4A65-921C-FA5F8AE4671A@mac.com> In-Reply-To: <C6FF7256-86A8-4364-980A-96E1DEFE37B1@prodigy.net> References: <C6FF7256-86A8-4364-980A-96E1DEFE37B1@prodigy.net>
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On May 18, 2015, at 1:37 PM, Jeffry Killen <jekillen@prodigy.net> wrote: > I am looking at the manual page for rc.conf and am wondering > how I would specify default router address when using DHCP? Normally one doesn't need to do so; DHCP is supposed to configure that = for you. > I don't see any further explicit elucidations beyond the text quoted = below. >=20 > text from man page: >=20 > It is possible to bring up an interface with DHCP by adding = ``DHCP'' to the ifconfig_<interface> variable. > For instance, to initialize the ed0 device via DHCP, it is possible = to use something like: > ifconfig_ed0=3D"DHCP" >=20 > actually, I have > ifconfig_em0=3D"DHCP" > Is the router address something that DHCP will figure out? Yes. > This interface will be for connection to internet via DSL modem > ISP is CenturyLink. >=20 > or alternately, suppose I want to assign a static address to interface > that would connect to internet via DSL modem. > ifconfig_em0=3D"inet 192.168.0.4 netmask 255.255.255.0" > When the router is at 192.168.0.1, how would this be specified. Add: defaultrouter=3D"192.168.0.1" ...to /etc/rc.conf. > I have also looked at ifconfig(8) and have found anything. ifconfig(8) sets up an interface; route(8) manages routing. > I have also had the kernel complain via a shell script set to > run in >=20 > I am also concerned about setting up tcp wrappers with inetd > to forestal possible attempts to access via telnet, ssh, ftp and > even MySql server (as I have seen frequently when I had static > ip address service). tcp wrappers typically only affects services launched by inetd, which doesn't normally include SSH or MySQLd. > This I have done when I did have static ip > service. But with fire wall in DSL modem and DHCP configuration > is it useful and advantageous? Yes, even a local per-host firewall improves security by a useful = amount. Regards, --=20 -Chuck
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