Ubuntu Server 12.04 static IP compact Configuration

PS: I haven't used Ubuntu for a long time, just installed an Ubuntu Server 12.04 test. Ubuntu Network settings are not the same as the Redhat system, the configuration of IP when found with the previous Ubuntu desktop version is also different, recorded as follows:

1. Configure static IP address:

# vim/etc/network/interfaces

The original content has the following 4 lines:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp


The above indicates that DHCP is used to assign IP by default and is modified as follows:


auto lo
iface lo inet loopback

# The Primary network interface
Auto Eth0
#iface eth0 inet DHCP

iface eth0 inet static
address 192.168.80.129
netmask 255.255.255.0
gateway 192.168.80.2

Save exit.
Note: You only need to set address (IP address), netmask (subnet mask), Gateway (gateways) These three items ok,network and broadcast are not writable.

2. Manually set up the DNS server:

# vim/etc/resolv.conf

Add the following (all Linux distributions are generic):

NameServer 192.168.80.2
NameServer 8.8.8.8

Save exit.

Note: After restarting Ubuntu, it is not possible to surf the internet again, the problem is/etc/resolv.conf. Once restarted, the DNS for this file configuration is automatically modified to the default value. So you need to permanently modify DNS. Here's how:

# Vim/etc/resolvconf/resolv.conf.d/base
NameServer 192.168.80.2
NameServer 8.8.8.8

3. Restart the networking service to make it effective:

#/etc/init.d/networking Restart

This allows the network configuration to be permanently active.

Ubuntu Server 12.04 static IP compact Configuration