手动配置ubuntu网络地址

配置文件路径：/etc/netplan/*.yaml
配置文件格式：

network:
  ethernets:
    eth0:
      dhcp4: false
      addresses:
        - 10.0.0.100/24
      gateway4: 10.0.0.2
      nameservers:
        addresses: [223.6.6.6, 114.114.114.114]
  version: 2

生效：netplan apply