Ubuntu 18.04 and Firewalld active zones

Virtualmin
1

I’m not clear what the expected config of Firewalld is immediately after a fresh virtualmin install but I’m seeing a difference between Ubuntu 18.04 and CentOS 7. The Ubuntu install has no active zones whereas CentOS 7 has ‘public’ active.

Virtualbox/vagrant testing with boxes ‘ubuntu/bionic64’ and ‘centos/7’. Fresh virtualmin install.

CentOS 7:
# firewall-cmd --get-default-zone
public

# firewall-cmd --get-active-zones
public
  interfaces: eth0

Ubuntu 18.04:
# firewall-cmd --get-default-zone
public

(active zones empty)
# firewall-cmd --get-active-zones