ubuntu 20.04 网络设置

ip a

or

ifconfig -a

sudo /etc/init.d/networking force-reload  ==> 重新加载网路配置文件

sudo /etc/init.d/networking restart

sudo service netorking restart 命令重启网络  

cat /etc/network/interfaces                                                      

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

auto enp9s0
iface enp9s0 inet dhcp

cat /etc/NetworkManager/NetworkManager.conf                                                                                          [~]
[main]
plugins=ifupdown,keyfile

[ifupdown]
managed=false

[device]
wifi.scan-rand-mac-address=no