参考链接：ubuntu 20.04 网络配置

网络配置文件目录：/etc/netplan/

• 配置实例

# 静态

network:

  version: 2

  ethernets:

    ens33:

      addresses: [192.168.1.123/24]

      dhcp4: no

      dhcp6: no

      gateway4: 192.168.1.1

      nameservers:

        addresses: [192.168.1.1,114.114.114.114]

# 动态

network:

    version: 2

    ethernets:

        enp0s3:

            addresses: []

            dhcp4: true

• 生效配置
  
  netplan apply