▶네트워크 IP 설정

#sudo vi /etc/network/interfaces

--------------------------------------
 auto eth0
 iface eth0 inet static
 address XXX.XXX.XXX.XXX
 netmask 255.255.255.240
 gateway XXX.XXX.XXX.XXX
 --------------------------------------  

▶nameserver 설정

 #sudo vi /etc/resolv.conf
 -----------------------------

 nameserver 168.126.63.1
 domain local
 search  local
  ---------------------------- 

#sudo /etc/init.d/networking restart     또는  service networking restart

sudo su -

http://ubuntuforums.org/showthread.php?t=1519519