KVM : Install2022/04/27

	This is the Virtualization Configuration with KVM ( Kernel-based Virtual Machine ) + QEMU. This requires that the CPU on your computer has a feature Intel VT or AMD-V.
[1]	Install required packages.

root@dlp:~#

apt -y install qemu-kvm libvirt-daemon-system libvirt-daemon virtinst bridge-utils libosinfo-bin

[2]	Configure Bridge networking.

root@dlp:~#

vi /etc/netplan/01-netcfg.yaml

network:
  ethernets:
    enp1s0:
      dhcp4: false
      # disable existing configuration for ethernet
      #addresses: [10.0.0.30/24]
      #routes:
      #  - to: default
      #    via: 10.0.0.1
      #    metric: 100
      #nameservers:
      #  addresses: [10.0.0.10]
      #  search: [srv.world]
      dhcp6: false
  # add configuration for bridge interface
  # [macaddress] ⇒ specify HW address of enp1s0
  bridges:
    br0:
      interfaces: [enp1s0]
      dhcp4: false
      addresses: [10.0.0.30/24]
      macaddress: 52:54:00:14:e6:76
      routes:
        - to: default
          via: 10.0.0.1
          metric: 100
      nameservers:
        addresses: [10.0.0.10]
        search: [srv.world]
      parameters:
        stp: false
      dhcp6: false
  version: 2

root@dlp:~#

netplan apply

root@dlp:~#

ip addr

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UP group default qlen 1000
    link/ether 52:54:00:14:e6:76 brd ff:ff:ff:ff:ff:ff
3: enp7s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 52:54:00:90:0c:21 brd ff:ff:ff:ff:ff:ff
4: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 52:54:00:14:e6:76 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.30/24 brd 10.0.0.255 scope global br0
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:ff:fe14:e676/64 scope link
       valid_lft forever preferred_lft forever
5: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:3f:25:d4 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever

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