SoHo - Ubuntu prerequisites

$ cat /etc/rc.local
#!/bin/sh
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

#set -x
exec > /dev/null 2>&1

ETH=eth0
IP1=192.168.1.15
GW1=192.168.1.1
NS1=172.16.162.57
TS1=$NS1
DM1=ourdom.com

for E in eth0 eth1 eth2
do
  /sbin/ifconfig $E > /dev/null 2>&1
  [ $? = 0 ] || continue
  ETH=$E
  break
done

/etc/init.d/openvpn stop

/sbin/ifconfig $ETH down > /dev/null 2>&1
/sbin/ifconfig $ETH $IP1 netmask 255.255.255.0 up

/sbin/route delete default > /dev/null 2>&1
/sbin/route add default gw $GW1

/bin/rm -f /etc/resolv.conf || true
(echo "nameserver $NS1" ; echo "domain $DM1" ; echo "search $DM1" ) \
      > /etc/resolv.conf

/usr/sbin/ntpdate $TS1
/etc/init.d/openvpn start

exit 0