On Friday, April 02, 2021 05:15:55 PM Alexander V. Makartsev wrote: > On 03.04.2021 01:15, rhkra...@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.