우분투 네트웍 설정

sudo vi /etc/network/interfaces

auto lo eth0
iface lo inet loopback
iface eth0 inet dynamic

고정 IP 변경

auto lo eth0
iface lo inet loopback
iface eth0 inet static
 address 192.168.1.101
 netmask 255.255.255.0
 gateway 192.168.1.1

sudo vi /etc/resolv.conf
nameserver 8.8.8.8

재시작
sudo /etc/init.d/networking restart
이게 안되는 경우
$ sudo service networking restart


$ sudo ifdown eth0 && sudo ifup eth0

eth0 명치 변경하기
cat /etc/udev/rules.d/70-persistent-net.rules