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Re: Why does resolv.conf keep changing?

On Sat, Nov 04, 2017 at 08:45:59AM +0100, tomas@xxxxxxxxxx wrote:
> Most of us fall into two classes:
>  A. All static. Nobody changes resolv.conf. All is well. Admin writes
>     resolv.conf (and /etc/hosts and all).  (the "classic")
>  B. Get IP address via DHCP (dhclient, NetworkManager, whatever else).
>     Whatever else writes to resolv.conf. User == admin mostly doesn't
>     even know what resolv.conf means, most of the time.
> Without resolvconf, you're in trouble if there are several agents
> caring about resolv.conf, that is, you are in class B and have
> e.g. NetworkManager and say dhclient (or some systemd outgrowth,
> cough, cough) trying to write to that file. Or you are in an intersection
> of A and B (who said they were disjoint? The sysadmin is but an agent
> more). In the latter case, you're bound to learn enough about sysadmin
> to really decide whether you *want* resolvconf or not.
> Me? I am in Aâ?©B. And with no resolvconf. Stefan? Most probably in
> the same set. And with resolvconf.
I agree.  The intersection situation (which I believe describes my) is
why I filed #879949.  I small hint would have saved me many hours of
frustration.  I suspect that it would do the same for others.



Roberto C. Sánchez