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On Ubuntu 19.04, networking service is provided by package ifupdown
<pre>
apt install -y ifupdown
</pre>
By default this package is not installed. So if you add network interface configuration in /etc/network/interfaces, it won&#8217;t work.
Ubuntu 18.04 + use netplan instead of ifupdown/networking service to configure network interfaces.
<a href="https://backend.serverok.in/linux-kvm-bridge-network-on-ubuntu">Linux KVM Bridge network on Ubuntu</a>
<a href="https://backend.serverok.in/configure-ovh-bridge-network-from-command-line">Configure OVH Bridge Network from command line</a>