On Sun, Aug 31, 2014 at 11:35:40AM +0200, Patrick Ben Koetter wrote:
> ; <<>> DiG 9.9.5-3-Ubuntu <<>> SOA +dnssec sys4.de
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61650
> ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 2, AUTHORITY: 4, ADDITIONAL: 3
> 
>                    ^^
> 
> If you don't see it, you resolver cannot authenticated DNSSEC enabled domains.
> Then you need to change that.

I think I found the issue:
LXC has started its own DNS server, and my LXC guest is not using my
bind9 server, but the one provided by LXC:
lxc-dns+ 1848 1 0 Aug22 ?  00:09:45 dnsmasq -u lxc-dnsmasq
--strict-order --bind-interfaces --pid-file=/run/lxc/dnsmasq.pid
--conf-file= --listen-address 10.0.3.1 --dhcp-range
10.0.3.100,10.0.3.254 --dhcp-lease-max=253 --dhcp-no-override
--except-interface=lo --interface=lxcbr0
--dhcp-leasefile=/var/lib/misc/dnsmasq.lxcbr0.leases
--dhcp-authoritative


I will check how to change the configuration of the LXC DNS server
that it resolves too DNSSEC or I will update my /etc/resolve.conf file
on the LXC guest system to ask directly my bind server.

Thanks very much for your helps.

-- 
Best regards,
Peter Bauer
Linux & UNIX developper

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