#1.重置网络
sudo service network-manager stop 
sudo rm /var/lib/NetworkManager/NetworkManager.state 
sudo service network-manager start

#2.配置网络
# 查看网卡信息
ifconfig -a 
# 设置地址和掩码
sudo ifconfig ens33 192.168.10.99 netmask 255.255.254.0
# 设置网关
sudo route add default gw 192.168.254.0