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→Workflow
• You VM1 should use iptables.service and VM2 to VM4 must use firewalld.service as their firewall. For firewalld.service, the ens192 interface should be set up in the 'public' zone and the ens224 interface should be set up in the ‘work’ zone. In addition to ssh traffic, your firewalls should only allow the traffic necessary to fulfil the roles described above.
==WorkflowMethod of implementation==* All the configuration must be done by using one of the following automation framework with:
** customized bash script with ssh, or
** fabric tasks, or