resolvconf

[@lbutlr]

On 11 Apr 2021, at 09:49, Carl Johnson <carlj at peak.org> wrote:
> Arthur Chance <freebsd at qeng-ho.org> writes:
>> On 11/04/2021 11:02, @lbutlr wrote:
>>> The man page for resolvecong says there should be a configuration
>>> file at
>>> 
>>> /etc/resolvconf.conf
>>> 
>>> But this file foes not exist, and it does not exist in /usr/local/
>>> either.
>>> 
>>> Right now, resolvconf is adding a DNS server that I do not want to
>>> /etc/resolve.conf and I want to figure out how to prevent this. I
>>> wouldn't mind figuring out what is adding it too, as the IP address
>>> does not appear in any file under /etc/ or /usr/local/etc/
>>> 
>>> If I create  /etc/resolvconf.conf:
>>> 
>>> resolvconf NO name_servers 127.0.0.1 x.x.x.x y.y.y.y z.z.z.z
>>> 
>>> Would that stop whatever it is that is adding the unwanted server
>>> from adding it and only use the servers I specify?
>> 
>> My /etc/resolvconf.conf just has
>> 
>> resolvconf="NO"
>> 
>> to stop it overwriting /etc/resolv.conf, and then I hand craft
>> resolv.conf (this is on a desktop machine where the network doesn't change).

I could have done that, I suppose, but since resolveconf seems to be baked in, I figured I might as well configure it.

> Mine just has the single line:
>    name_servers="192.168.193.200 192.168.193.1"
> and that creates the resolv.conf with those two name servers.

According to the man page that would not prevent some other service adding other resolvers.

>>> When was resolveconf tasked with overwriting the resolver.conf file?
>>> Was this part of moving to FreeBSD 12?
>> 
>> Earlier than that. I can't remember whether it was 11 or 10.

That is odd, because I know that my server was not using the quad9 DNS when I was on 11.2, though I cannot say that it wasn't;t using "resolveconf" back then.

> I was using 10.2 when I started using resolvconf.conf.

As far as I know I never started using resolvconf as I had never heard of it before a few days ago when I looked at resolve.conf wondering why I was hitting 9.9.9.9 on occasions and saw "created by resolveconf" and went investigating.

I still do not know where the quad9 DNS that was added came from (simply editing resolve.conf did not work, it was immediately put back). I've searched for any files contains "9\.9\.9\.9" to no avail, so maybe in a DB file?


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