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From: Grant Edwards <grant.b.edwards@gmail.com>
Subject: [gentoo-user] Re: resolv.conf full of old info
Date: Wed, 19 Oct 2022 00:00:31 -0000 (UTC)
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On 2022-10-18, Grant Edwards <grant.b.edwards@gmail.com> wrote:

> I've noticed that /etc/resolv.conf seems to accumulate obsolete,
> useless info as my laptop moves from one network to another. It looks
> like dhcpcd adds stuff when a connection comes up, but never removes
> it when the connection goes down.

This appears to be caused by the "persistent" option in dhcpcd.conf,
which is set by default. I commented it out, and now resolv.conf
behaves rationally: it only contains info for network connections that
are up.

Why would dhcpcd have the persistent option enabled by default?

--
Grant