[Dnsmasq-discuss] Rather basic question - how do you tell dnsmasq what upstream DNS servers to use?
Chris Green
cl at isbd.net
Sat Oct 3 19:19:10 BST 2020
On Sat, Oct 03, 2020 at 06:06:56PM +0200, Geert Stappers wrote:
> On Sat, Oct 03, 2020 at 03:59:46PM +0100, Chris Green wrote:
> > I'm feeling really silly, I've been using dnsmasq for several years
> > running it on a dedicated Raspberry Pi on the LAN to provide local DNS.
> >
> > It's been working perfectly OK but just a very short while ago the
> > Google DNS server at 8.8.8.8 went down for a while and it's what I
> > (appear to) use as the upstream DNS.
> >
> > How and where does one set dnsmasq's upstream DNS? Is it the following
> > line in /etc/dhcpcd.conf :-
> >
> > /etc/dhcpcd.conf:static domain_name_servers=192.168.1.4 8.8.8.8 fd51:42f8:caae:d92e::1
> >
> > The file /run/dnsmasq/resolv.conf appears to be derived directly from
> > the above:-
> >
> > chris at newdns$ more resolv.conf
> > # Generated by resolvconf
> > nameserver 192.168.1.4
> > nameserver 8.8.4.4
> > nameserver fd51:42f8:caae:d92e::1
> >
> > The Raspberry Pi running dnsmasq is 192.168.1.4 on the LAN here, I'm
> > running dnsmasq version 2.76.
>
> Snippet from the dnsmasq manual page:
>
> -S, --local,
> --server=[/[<domain>]/[domain/]][<ipaddr>[#<port>][@<source-ip>|<interface>[#<port>]]
> Specify IP address of upstream servers
> directly. Setting this flag does not suppress
> reading of /etc/resolv.conf, use --no-resolv to do that.
>
Yes, but do I want it to ignore /etc/resolv.conf (well, actually,
/var/run/dnsmasq/resolv.conf) ? Do I want resolvconf to handle which
DNS servers are used or am I better turning resolvconf off altogether?
--
Chris Green
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