how to restore a working network configuration with netplan on ubuntu 20.04
by marietto2008 from LinuxQuestions.org on (#55K4Y)
Hello. Newbie here.
recently I tried to install open nebula and for some reason,the eno1 network interface is disappeared from my ubuntu 20.04 network configuration and I would like to restore it,because actually I'm not able to connect to internet. Ubuntu 20.04 uses netplan. This is my 01-network-manager-all.yaml file :
Code:network:
version: 2
renderer: networkd
ethernets:
eno1:
dhcp4: true
Actually,when I do ifconfig,I see these network interfaces :
Code:docker0 : inet 172.17.0.1 ; netmask 255.255.0.0 ; broadcast 172.17.255.255
minione-nic : no inet ; no netmask ; no broadcast
veth03ad024 : no inet ; no netmask ; no broadcast
virbr0 : inet 192.168.122.1 ; netmask 255.255.255.0 ; broadcast 192.168.122.255
virbr0-nic : no inet ; no netmask ; no broadcast
I tried to re-create the old eno1 interface with these commands :
Code:sudo netman apply
sudo systemctl restart network-manager
I don't see any identation error,but the situation is not changed. I have no eno1 interface and no connection to internet. what should I do ? what's missing ?
recently I tried to install open nebula and for some reason,the eno1 network interface is disappeared from my ubuntu 20.04 network configuration and I would like to restore it,because actually I'm not able to connect to internet. Ubuntu 20.04 uses netplan. This is my 01-network-manager-all.yaml file :
Code:network:
version: 2
renderer: networkd
ethernets:
eno1:
dhcp4: true
Actually,when I do ifconfig,I see these network interfaces :
Code:docker0 : inet 172.17.0.1 ; netmask 255.255.0.0 ; broadcast 172.17.255.255
minione-nic : no inet ; no netmask ; no broadcast
veth03ad024 : no inet ; no netmask ; no broadcast
virbr0 : inet 192.168.122.1 ; netmask 255.255.255.0 ; broadcast 192.168.122.255
virbr0-nic : no inet ; no netmask ; no broadcast
I tried to re-create the old eno1 interface with these commands :
Code:sudo netman apply
sudo systemctl restart network-manager
I don't see any identation error,but the situation is not changed. I have no eno1 interface and no connection to internet. what should I do ? what's missing ?