Networking :: Lose connectivity to the net after reboot

I'm used to using ubuntu/kubuntu so DSL is a little new to me.

I have this in my \etc\network\interfaces file

# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)

# The loopback interface
# automatically added when upgrading
auto lo
iface lo inet loopback

auto eth0
iface eth0 static ip
address 192.168.0.2
netmask 255.255.255.0
sudo eth0 autoneg off speed 100 duplex full

I have to type these three commands in order to get my internet connection working after a reboot. This pc is sharing the internet with another one, at least until I give it to my cousin. Once I give the pc to my cousin, it will be connected to a router.

Here are my three commands that I type in the terminal:

ifconfig eth0 192.168.0.2
route add default gw 192.168.0.1
echo nameserver 192.168.0.1 > /etc/resolv.conf

I've even done a sudo /etc/init.d/networking restart but nothing works until I type the three lines in.
What file do I need to modify so that my internet connection works after reboot and/or restart?
Basically, what can I do so that I don't have to issue the three commands above all the time?
thx.

How to manually assign a static ip is a common question with answer in the wiki; place your commands in /opt/bootlocal.sh.

Or better yet use the gui tool provided in DSL which does this for you.

thx. (as always)

original here.