[clug] Netgear router DNS

Dale Shaw dale.shaw at gmail.com
Wed Dec 26 08:27:07 UTC 2018


On Wed, 26 Dec 2018 at 2:17 pm, Michael Still via linux <
linux at lists.samba.org> wrote:

> Can you set the pihole as the router's upstream DNS? The the router can
> keep handing out its own IP for DNS and it won't matter.

Unless I’m misinterpreting, that’s what he said he did.

I’m curious what pihole is using as its upstream server — is there any
chance it’s using the Netgear? That’d be a recursive lookup of doom, if so.
It may also explain why pihole worked as a recursive server before the
Netgear was changed.

If using root servers or some other resolver (ISP, google, cloudflare,
opendns, ...) then I’m out of ideas. Maybe, for some reason that made sense
to the developer, the Netgear expects the “use this DNS” server to be
reachable via its WAN interface?



On Wed., 26 Dec. 2018, 5:08 pm Mike Carden via linux <linux at lists.samba.org
> wrote:
> > Does anyone have experience with Netgear home routers and DNS?
> >
> > I have a WNDR3700V4 Netgear router.
> >
> > I have a pihole DNS server on my local network. If I edit my laptop’s
> > /etc/resolv.conf, I can get it to resolve via pihole.
> >
> > What I want to do is get my router to tell DHCP clients to use the pihole
> > for DNS.
> >
> > So I set the pihole IP as the ‘Use this DNS’ in the router’s settings,
> but
> > it doesn’t seem to change anything. Before the change, my laptop has the
> > router’s Gateway IP as the DNS address in /etc/resolv.conf, and after the
> > change and a disconnect/reconnect to the router, it’s still that. But
> > clients can’t get DNS.
> >
> > I kinda hoped that the router would Do The Right Thing, but it seems not.
> >
> > Ideas?

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