Ubuntu 15.10 Desktop 由DHCP改為固定IP

• 快速檢查可用的網路卡，由下可見是找不到名為eth的網路

root@lulu:~# ifconfig -a |grep eth

• 使用lshw指令找尋網卡，由下可見，不見得每張網卡都叫eth，目前OS VM使用Alfa Usb無線網卡,名稱為enp0s3

root@lulu:/etc/network# lshw -class network
USB
  *-network
       description: Ethernet interface
       product: 82540EM Gigabit Ethernet Controller
       vendor: Intel Corporation
       physical id: 3
       bus info: pci@0000:00:03.0
       logical name: enp0s3
       version: 02
       serial: 08:00:27:62:75:7a
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 66MHz
       capabilities: pm pcix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000 driverversion=7.3.21-k8-NAPI duplex=full ip=192.168.1.122 latency=64 link=yes mingnt=255 multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:19 memory:f0000000-f001ffff ioport:d010(size=8)
root@lulu:/etc/network#

• 修改檔案/etc/network/interfaces  ，

設定固定IP為192.168.1.151/24 ，Gateway為192.168.1.1

auto lo

iface lo inet loopback

iface enp0s3 inet static

address 192.168.1.151

netmasks 255.255.255.0

network 192.168.1.0

broadcast 192.168.1.255

gateway 192.168.1.1

dns-nameservers 168.95.1.1