Re: Temporary failure in name resolution
On Friday, April 02, 2021 05:15:55 PM Alexander V. Makartsev wrote:
> On 03.04.2021 01:15, rhkramer@gmail.com wrote:
> > Sort of building on this question, and just trying to educate myself, if
> > the
> >
> > DSL modem had a caching nameserver:
> > 1) would your computer need to specify the IP of that modem
> > (presumably)
> >
> > 192.168.1.254 to take advantage of the caching?
>
> Most of SOHO class routers\modems don't offer fully-fledged DNS server
> and domain name caching features.
> They act as relays, simply redirecting DNS requests to the nearest
> configured domain name server.
> But if some device offers such features like domain name caching, then
> yes, you will have to specify the IP of that device to take advantage of
> the caching.
Ahh, ok, good, thanks (that answers my question).
> > 2) would the caching feature be bypassed if your computer used the
> > public
> >
> > DNS name servers (e.g., 8.8.8.8, 8.8.4.4, and 1.1.1.1)? (Or if they were
> > listed before the modem IP address?)
>
> Yes, it would be bypassed since you asking completely different domain
> name server to resolve your DNS requests.
Ahh, ok, good, thanks (that answers my question).
> An example: If you have a local network with a several hosts and want to
> address these hosts by their domain names,
> you will have to setup local domain name server which will resolve local
> domain name requests and redirect non-local domain ones.
> In this case, you will have to specify only one IP address of that local
> DNS, because public domain name servers don't know anything about host
> names in your local domain.
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