IP修改文件地址:
sudo vi /etc/network/interfaces
address 192.168.0.123
netmask 255.255.255.0
gateway 192.168.0.1
dns-nameservers 192.168.0.1
dns-search pcat
dns修改地址:
sudo vi /etc/resolvconf/resolv.conf.d/base
nameserver 114.114.114.114
sudo /etc/init.d/networking restart