Re: Why does resolv.conf keep changing?
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On Wed, Oct 25, 2017 at 07:35:35AM -0400, Gene Heskett wrote:
> On Tuesday 24 October 2017 23:46:47 Felix Miata wrote:
>
> > Gene Heskett composed on 2017-10-24 22:52 (UTC-0400):
> > >> On Mon, Oct 23, 2017 at 20:31:05 -0400, Gene Heskett wrote:
> > >>>and made immutable. Particularly is the fact that /etc/resolv.conf
> > >>> isn't a link to something else but contains:
> > >>>
> > >>>nameserver 192.168.XX.1
> > >>>search host dns
> > >>>domain coyote.den
This seems wrong (I know, I'm late to the party). The way I read
resolv.conf's man page (and my hazy memory), "search" lists *domains*
to be appended to the host name to be resolved if that is incomplete.
For example: my resolv.conf has a line
search lan
(whoever put that in there, but it's irrelevant on my laptop anyway).
If I try to resolve just "foo", the resolver will first try "foo.lan"
(duh, that's most probably wrong), then just "foo". If I give an
FQDN (e.g. duckduckgo.com), the dots in the host name tell the resolver
to bypass the search list.
"host" and "dns" seem like wrong things to put in "search". The search
entry above looks to me like something which should be in /etc/nsswitch.conf,
like
hosts: files dns
meaning: "when looking for a host name, look first in /etc/hosts (files),
if that fails turn to the DNS (dns).
As always, I might be wrong.
Cheers
- -- tomás
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