Ubuntu 16.04 網路設定

先查詢網路設備 ifconfig or networkctl

# ifconfig -a
ens33     Link encap:Ethernet  HWaddr 00:0c:29:da:d1:b0 
          inet addr:10.10.8.57  Bcast:10.10.8.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:feda:d1b0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:9149 errors:0 dropped:45 overruns:0 frame:0
          TX packets:963 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:950063 (950.0 KB)  TX bytes:408797 (408.7 KB)

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:264 errors:0 dropped:0 overruns:0 frame:0
          TX packets:264 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1
          RX bytes:19200 (19.2 KB)  TX bytes:19200 (19.2 KB)

# networkctl -a
WARNING: systemd-networkd is not running, output will be incomplete.

IDX LINK             TYPE               OPERATIONAL SETUP   
  1 lo               loopback           n/a         unmanaged
  2 ens33            ether              n/a         unmanaged

2 links listed.


**  ubuntu 16.04 系統 基本為DHCP模式
      修正為分配固定 ip

# vi /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
#auto ens33
#iface ens33 inet dhcp

auto ens33
iface ens33 inet static
address 10.10.8.57
netmask 255.255.255.0
gateway 10.10.8.254
dns-nameservers 10.10.0.9 10.10.0.10

重新啟用網路設定
# /etc/init.d/networking restart