关于一些Ubuntu网络问题的解决办法

操作网络服务命令 (需要权限，普通用户+sudo)
service networking start/stop/status/restart

systemctl start/stop/status/restart/ networking

/etc/init.d/networking start/stop/status/restart

网络管理操作命令
service network-manager start/stop/status/restart

systemctl start/stop/status/restart/ network-manager

/etc/init.d/network-manager start/stop/status/restart

操作网卡命令
ifdown 网卡名称ifup 网卡名称ifconfig 网卡名称 downifconfig 网卡名称 up

配置网络

Ubuntu网络配置文件地址：/etc/network/interfaces

域名服务IP配置文件地址：

/etc/resolv.conf

wired unmanaged不能上网

/etc/NetworkManager/NetworkManager.conf 修改managed=true

然后重启网络管理systemctl restart network-manager