First, thanks to Major Hayden for his blog post which pointed out the use of systemd-resolved:
So, now we have the possibility to use systemd-networkd under ubuntu 18.04, I’d like to use it also under CentOS 7.
And yes, we can.
yum -y install systemd-networkd
Disable network manager and enable networkd and resolved:
systemctl disable network NetworkManager
systemctl enable systemd-networkd systemd-resolved
Save the following contents to
(On my server the interface was no longer called ens3 but now eth0, hence the
Now create a symlink to the systemd-resolved resolv.conf:
rm -f /etc/resolv.conf
ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf
And just to be sure, reboot 🙂
Now we have it up and running:
[root@el7 ~]# networkctl
IDX LINK TYPE OPERATIONAL SETUP
1 lo loopback carrier unmanaged
2 eth0 ether routable configured
2 links listed.
[root@el7 ~]# networkctl status eth0
● 2: eth0
Link File: n/a
Network File: /etc/systemd/network/99-wildcard.network
State: routable (configured)
Vendor: Red Hat, Inc.
Model: Virtio network device
HW Address: 1e:00:85:00:1b:5a
Gateway: 18.104.22.168 (ICANN, IANA Department)