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.