CentOS - Jul 2014 - How to have two interfaces with dhcp using networkd but taking the dns/ntp stuff from only one

Ok, we can take both but needs to be in a specific order. So, we have
two ethernet interfaces, A and B. And both are defined in
/etc/systemd/network/ to use dhcp. How to guarantee that the crap
provided by dhcp to A (dns, gateway, ntp) is the default? To use an
example, /etc/resolv.conf should end up like

nameserver IP.for.A.DNS
nameserver IP.for.B.DNS
domain A.domain.com

Now, this must be done using only systemd stuff

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s1-networkscripts-interfaces.html

See: PEERDNS
(Not sure this still applies in 7)

> On Jul 11, 2014, at 4:41 AM, Mauricio Tavares <raubvogel at
gmail.com> wrote:
> 
> Ok, we can take both but needs to be in a specific order. So, we have
> two ethernet interfaces, A and B. And both are defined in
> /etc/systemd/network/ to use dhcp. How to guarantee that the crap
> provided by dhcp to A (dns, gateway, ntp) is the default? To use an
> example, /etc/resolv.conf should end up like
> 
> nameserver IP.for.A.DNS
> nameserver IP.for.B.DNS
> domain A.domain.com
> 
> Now, this must be done using only systemd stuff
> _______________________________________________