Lesson 5

Dates: 2/20/2019
Linux networking
Linux System Administration


Exercises: Configuring network on Ubuntu 18.04 with Netplan


  • Shutdown kvm1 VM, and clone it into netplan VM: 
    virsh shutdown kvm1 
virt-clone --connect=qemu:///system -o kvm1 -n netplan -f /home/hostadm/KVM/netplan.qcow2
    Start netplan. Login to console of netplan: 
    virsh console netplan
  • Fix the hostname.
  • Reset the machine ID by running the following commands on kvm3: 
    rm -f /etc/machine-id
rm /var/lib/dbus/machine-id
dbus-uuidgen --ensure=/etc/machine-id
dbus-uuidgen --ensure
  • Clear the DHCP leased IP settings: 
    dhclient -r ens3
  • Execute command reboot on kvm3: 
    reboot

  • Check the IP address settings on netplan 
    ip addr
  • Assign IP address 192.168.122.222 by modifying the content of /etc/netplan/01-netcfg.yaml as follows 
    network:
 version: 2
 renderer: networkd
 ethernets:
   ens3:
     dhcp4: no
     addresses: [192.168.122.222/24]
     gateway4: 192.168.122.1
     nameservers:
       addresses: [192.168.122.1]
  • Have the settings applied: 
    netplan apply
  • Check the IP address again: 
    ip addr
    It should show 192.168.122.222 for ens3 interface now.

    • Take me to the Course Website