ubuntu-network

init network setting

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

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto wlan0
iface wlan0 inet dhcp
	# wireless-* options are implemented by the wireless-tools package
	wireless-mode managed
	wireless-essid peacefree

auto eth0
iface eth0 inet dhcp

setup_network.bash

#!/bin/bash

addr=$1

if [ $# -ne 1 ]; then
    echo "Usage: `basename $0` {ip-addr-4octet(ex. `basename $0` 101 is 172.31.0.101)}"
    exit 1
fi

ethif="`/sbin/ifconfig -a | grep eth | awk '{print $1}'`"

echo peace-giant`printf "%02d\n" ${addr}` > /etc/hostname

cp -p /etc/network/interfaces /etc/network/interfaces.`date +'%Y%m%d_%H%M%S'`

echo "# This file describes the network interfaces available on your system" > /etc/network/interfaces
echo "# and how to activate them. For more information, see interfaces(5)." >> /etc/network/interfaces
echo "" >> /etc/network/interfaces
echo "# The loopback network interface" >> /etc/network/interfaces
echo "auto lo" >> /etc/network/interfaces
echo "iface lo inet loopback" >> /etc/network/interfaces
echo "" >> /etc/network/interfaces
echo "# The primary network interface" >> /etc/network/interfaces
echo "#auto wlan0" >> /etc/network/interfaces
echo "#iface wlan0 inet dhcp" >> /etc/network/interfaces
echo "        # wireless-* options are implemented by the wireless-tools package" >> /etc/network/interfaces
echo "        #wireless-mode managed" >> /etc/network/interfaces
echo "        #wireless-essid peacefree" >> /etc/network/interfaces
echo "" >> /etc/network/interfaces
echo "auto ${ethif}" >> /etc/network/interfaces
echo "iface ${ethif} inet static" >> /etc/network/interfaces
echo "        address 172.31.0.${addr}" >> /etc/network/interfaces
echo "        netmask 255.255.255.0" >> /etc/network/interfaces
echo "        network 172.31.0.0" >> /etc/network/interfaces
echo "        broadcast 172.31.0.255" >> /etc/network/interfaces
echo "        #dns-nameservers 8.8.8.8 8.8.4.4" >> /etc/network/interfaces
echo "        #gateway 172.31.0.201" >> /etc/network/interfaces
echo "" >> /etc/network/interfaces
echo "#up route add default gw 172.31.0.201" >> /etc/network/interfaces

echo -n "" > /etc/udev/rules.d/70-persistent-net.rules

echo "### complete, new /etc/network/interfaces ###"
cat /etc/network/interfaces
echo -e "\n### Please, reboot. ###"

exit 0