Date: Tue, 19 Nov 2002 10:03:25 -0800 From: Rich Morin <rdm@cfcl.com> To: hackers@FreeBSD.ORG Subject: Re: auto-definition of a single network interface Message-ID: <p05200f30ba0029798069@[192.168.254.205]> In-Reply-To: <200211191517.17242.l.s.r@web.de> References: <p05200f20b9fd8c66ad17@[192.168.254.205]> <200211191517.17242.l.s.r@web.de>
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At 3:17 PM +0100 11/19/02, Ren=E9 Scharfe wrote:
>OK, perhaps this can be made even simpler. Put this into your /etc/rc.conf
>and be done:
>
> # a hack to ease the configuration of machines with only one NIC
> _single=3D`ifconfig -l link`
> eval ifconfig_${_single}=3D"inet 192.168.254.193 netmask 255.255.255.0"
> eval ifconfig_${_single}_alias0=3D"inet 192.168.254.199 netmask 255.255.=
255.0"
One of the nice things about FreeBSD's rc.conf approach is that it moves a
large number of declarations out of assorted scripts, putting them into a
set of "declarative" files. While these files technically contain code,
I've never seen them contain anything other than "var=3Dval" statements.
I am therefore loathe to suggest any hack that starts putting executable
code in these files. I am also concerned about making the system too
"brittle"; it should handle error conditions as cleanly as possible. So,
while this is definitely a cute hack, I would not recommend it for general
use.
-r
--
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