Ubuntu16.04 Network Configuration

lichengbei

2019-10-19

1. Modify the network configuration file:

root@ubuntu-lichengbei:~# vim /etc/network/interfaces

It reads as follows:

 

# 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

# interface
auto ens38
iface ens38 inet static
        address 192.168.0.2
        netmask 255.255.255.0
        network 192.168.0.0
        broadcast 192.168.0.255
        gateway 192.168.0.1

auto ens33
iface ens33 inet static
        address 32.14.0.2
        netmask 255.255.0.0
        network 32.14.0.0
        broadcast 32.14.255.255
 
# nameserver
dns-nameservers 223.5.5.5
dns-nameservers 223.6.6.6

# route
up route add -net 35.0.0.0 netmask 255.0.0.0 gw 32.14.0.2 dev ens33

Note: The only be assigned to a network port Gateway , the system generates a default route

2.reboot take effect (also can restart the network service networking restart to take effect)

3. Network Command Reference:

ifconfig -a 

ifconfig eth0 192.168.1.56 netmask 255.255.255.0

ip addr flush dev eht0

ifconfig eth0 down

ifconfig eth0 up