Maintained by: NLnet Labs

dynamic ip host & auto dns changes

A. Schulze
Mon Sep 18 17:54:31 CEST 2017



Am 18.09.2017 um 14:57 schrieb Ernie Luzar via Unbound-users:
> Hello list.
> 
> I have installed the unbound port on Freebsd release 11.1. My host gets
> an dynamic ip address assigned from the ISP service I am using. This is
> all very common and normal. But as we all know, the ISP can change not
> only the assigned ip address on the fly but also the dns servers ip
> addresses. When this occurs the /etc/resolv.conf file gets updated
> automatically on the fly.
> 
> From reading about unbound I get the concept that unbound is designed
> for hosts that have static ip addresses. IE; the dns ip addresses have
> to be manually placed in /etc/resolv.conf and will not change without
> prior written notice.
> 
> For this usage /etc/resolv.conf get populated with
> "nameserver 127.0.0.1"
> and unbound.conf needs the forward-zone: section with the static dns ip
> addresses.

which "static dns ip address" do you like to see there?

> Now my question is, is there any way to configure unbound so when the
> dynimic dns ip addresses change unbound will contuine to work
> automatically. IE; no human manual editing of the unbound.conf file.
simply do no forwarding at all. Let unbound do it's job: 
 - offer recursiver resolution on 127.0.0.1
 - resolve names as usual from the root
You're not required to *use* the ISP's dnsserver even if they are offered.

Andreas