Ubuntu Server 18.04 Modify network configuration

The new Ubuntu server uses netplan to manage the network configuration, which is very different from the previous configuration.

The practical solution is to modify the /etc/netplan/01-netcfg.yaml file:

sudo vim /etc/netplan/01-netcfg.yaml (the file name may be different for each server)

 

Execute the command sudo netplan apply to make the configuration take effect:

 

Then modify the DNS server address:

south you /etc/resolv.conf

Set as available DNS server