resolv.conf questions
Robert Heller
heller at deepsoft.com
Tue Aug 6 12:48:55 UTC 2019
At Tue, 6 Aug 2019 20:29:56 +0800 "Ubuntu user technical support, not for general discussions" <ubuntu-users at lists.ubuntu.com> wrote:
>
> Hello,
>
> After installing ubuntu-18.04 I found there are the lines in
> /etc/resolv.conf:
>
> nameserver 127.0.0.53
> options edns0
127.0.0.53 points to the "systemd-resolved" process. The theory is the
systemd-resolved is a caching DNS (amoungst other things). systemd-resolved
is (supposedly) configured to use read nameserers as needed.
man systemd-resolved
for more information and how to configure it.
>
> I am not familiar with Linux enough, having questions that:
>
> why does nameserver set up to this address rather than a public DNS such
> as 8.8.8.8?
>
> How to disable it?
>
> what is options edns0?
>
> Thanks.
>
>
--
Robert Heller -- 978-544-6933
Deepwoods Software -- Custom Software Services
http://www.deepsoft.com/ -- Linux Administration Services
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