[systemd-devel] Understanding DHCP, DNS and IPMasquerade

Lennart Poettering lennart at poettering.net
Mon Jun 15 10:33:53 PDT 2015


On Mon, 15.06.15 10:32, Johannes Ernst (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

Does "machinectl status" show the IP addresses of the container in its
output?

Lennart

-- 
Lennart Poettering, Red Hat


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