ubuntu系统设置静态ip地址

## 查看路由
route -n
192.168.3.1

有几张网卡，就有几个配置文件

sudo vi /etc/netplan/*.yaml

network:
  version: 2
  renderer: networkd
  ethernets:
    enp0s8:
      dhcp4: false
      addresses: [192.168.3.121/24]
      gateway4: 192.168.3.1
      nameservers:
        addresses: [8.8.8.8, 8.8.4.4]

sudo netplan apply