From
http://www.thekelleys.org.uk/dnsmasq/doc.html:
Dnsmasq can be configured to automatically pick
up the addresses of it's upstream nameservers from
ppp or dhcp configuration. It will automatically
reload this information if it changes. This
facility will be of particular interest to
maintainers of Linux firewall distributions since
it allows dns configuration to be made automatic.
Bingo, 100%. Thanks, Luke. I owe you a beer...
-Original Message-
From: Luke Johannsen [mailto:[EMAIL PROTECTED]
Sent: Sunday, February 01, 2004 3:48 PM
To: Edward Carmody
Cc: [EMAIL PROTECTED]
Subject: Re: FBSD router/firewall with dhclient
dhcpd
On Feb 1, 2004, at 2:24 PM, Edward Carmody wrote:
Hi, I'm trying to replace my Linksys
router/firewall/nat box with a FreeBSD box...I'm
in the configuring/testing phase before I put it
into production...
My *potential* problem is that my ISP
(Cablevision) re-addresses their DNS servers
often. My question is: is there a way to
dynamically update the option
domain-name-servers values in dhcpd.conf from
the nameserver values
my ISP-facing, dhclient-using interface is
writing into resolv.conf?
Or, more simply, how can my DHCP server hand out
*known-fresh-and-good* ISP dns server addresses
gathered from the wan-facing dhcp client?? The
linksys box I have now does this
auto-magically...
;-)
I don't know if this is a solution that you want
but it works for me.
Setup DNSMasq on your firewall machine.
http://www.thekelleys.org.uk/dnsmasq/doc.html or
from the ports
/usr/ports/dns/dnsmasq. Then just point to your
internal IP on your
firewall as your nameserver. It's quick and
painless to setup and get
running and seems to work well for small networks.
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