【ubuntu20】设置静态IP

sudo gedit /etc/netplan/01-network-manager-all.yaml

修改文件为：

# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager
  ethernets:
    ens33:
      dhcp4: no
      addresses: [192.168.1.30/24]
      gateway4: 192.168.1.1
      nameservers:
        addresses: [192.168.1.1,114.114.114.114]

若一行以冒号结尾，下一行必须再缩进两个空格，否则报错

然后 

sudo netplan apply

应用修改

再用ifconfig查看

完成修改