[systemd-devel] Understanding DHCP, DNS and IPMasquerade

Johannes Ernst johannes.ernst at gmail.com
Mon Jun 15 11:38:48 PDT 2015


> On Jun 15, 2015, at 11:32, Lennart Poettering <lennart at poettering.net> wrote:
> 
> On Mon, 15.06.15 10:39, Johannes Ernst (johannes.ernst at gmail.com) wrote:
> 
>> 
>>> On Jun 15, 2015, at 10:33, Lennart Poettering <lennart at poettering.net> wrote:
>>> 
>>> On Mon, 15.06.15 10:32, Johannes Ernst (johannes.ernst at gmail.com <mailto:johannes.ernst at gmail.com>) wrote:
>>> 
>>>> 
>>>>> On Jun 14, 2015, at 15:27, Lennart Poettering <lennart at poettering.net> wrote:
>>>>> 
>>>>> On Fri, 12.06.15 17:32, Johannes Ernst (johannes.ernst at gmail.com) wrote:
>>>>> 
>>>>>> * host and container can ping test (if test is the name of the
>>>>>> * container machine per machinectl): FAILS, neither can
>>>>> 
>>>>> Do you have nss-mymachines enabled in /etc/nsswitch.conf?
>>>> 
>>>> Yes:
>>>> 
>>>>> Does pinging via the IP addresses work? 
>>>> 
>>>> Yes. Both container->host and host->container.
>>>> 
>>>> On host:
>>>>> machinectl
>>>> MACHINE CLASS     SERVICE
>>>> foo     container nspawn 
>>>> 
>>>> 1 machines listed.
>>>>> ping foo
>>>> ping: unknown host foo
>>>>> cat /etc/nsswitch.conf 
>>>> hosts: nss-mymachines files mdns_minimal [NOTFOUND=return] dns
>>>> myhostname
> 
> Ah, heh, try "mymachines" instead of "nss-mymachines"... Also see
> nss-mymachines(8) man page. That should fix your issue.

Magic! It’s working! Thank you.


> 
> Lennart
> 
> -- 
> Lennart Poettering, Red Hat



More information about the systemd-devel mailing list