Re: /etc/resolv.conf being blanked
Dominic Hargreaves a écrit :
> On Sun, Oct 11, 2015 at 01:47:57PM +0200, Pascal Hambourg wrote:
>>
>> That may be generated from received IPv6 router advertisements (RA) by
>> rdnssd if installed. In that case, you can remove this package if you
>> don't need DNS resolution through the IPv6 server. Otherwise, check
>> whether the package resolvconf is installed.
>
> Aha! Thanks for the clue.
>
> The problem appears to have gone away after removing rdnssd, so I assume
> it was a particularly severe case of #740998 (an RC bug which was sadly
> not fixed in jessie).
Even though I was aware of issues with rdnssd, I didn't know about this
RC bug. I'll check it.
> I'll follow up on that bug (and probably a new bug against
> debian-installer to have rdnssd not installed).
Problem is, rdnssd is required in an IPv6-only network with
autoconfiguration in order to fill /etc/resolv.conf, or a dual-stack
network with only autoconfigured IPv6 DNS. IME, installing resolvconf
solves the competition between the different DNS sources (RDNSS, DHCP
client, Network Manager...) for resolv.conf.
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