ifconfig查看网络接口名称
vim /etc/network/interfaces
里面内容格式:(按需修改)
auto ens33
iface ens33 inet static
address 192.168.1.20
netmask 255.255.255.0
gateway 192.168.1.1
dns-nameserver 202.96.209.133123456
刷新网络:
sudo ip addr flush ens33
sudo systemctl restart networking