Server config based on:

Data Replication between servers https://www.programmersought.com/article/92226036787/
Virtual machine hosting https://www.tecmint.com/install-kvm-on-ubuntu/
cockpit https://www.tecmint.com/manage-kvm-virtual-machines-using-cockpit-web-console/
linux firewall : firewall

Storage

Data: /export/nfs/data
ISO: /export/nfs/iso

virsh network

<network>
  <name>default</name>
  <uuid>aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeee</uuid>
  <forward mode='nat'/>
  <bridge name='virbr0' stp='on' delay='0'/>
  <mac address='XX:XX:XX:XX:XX:XX'/>
  <domain name='default'/>
  <ip address='AAA.BBB.CCC.DDD' netmask='255.255.255.0'>
    <dhcp>
      <range start='AAA.BBB.CCC.DDD' end='AAA.BBB.CCC.DDD'/>
      <host mac='XX:XX:XX:XX:XX:XX' name='bob' ip='AAA.BBB.CCC.DDD'/>
      <host mac='XX:XX:XX:XX:XX:XX' name='opensense' ip='AAA.BBB.CCC.DDD'/>
      <host mac='XX:XX:XX:XX:XX:XX' name='windows' ip='AAA.BBB.CCC.DDD'/>
    </dhcp>
  </ip>
</network>

Server config based on:

Storage

virsh network

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