Network

For your account only edit:

sudo vi /home/<username>/.bashrc

For global proxy edit:

sudo vi /etc/profile

add

export http_proxy=http://10.0.0.1:8080

Reload your configuration

source /home/<username>/.bashrc

or

source /etc/profile

Edit /etc/network/interfaces:

sudo vi /etc/network/interfaces

and add

auto eth0
iface eth0 inet static
        address 10.0.0.2
        netmask 255.0.0.0
        network 10.0.0.0
        broadcast 10.0.0.255
        gateway 10.0.0.1
        dns-nameservers 10.0.0.1

Restart your networkinterface

/etc/init.d/networking restart

Edit /etc/hosts

sudo vi /etc/hosts

and add

127.0.0.1       localhost.localdomain localhost
127.0.1.1       ubuntu.lunetikk.de ubuntu
10.0.0.2        ubuntu.lunetikk.de ubuntu

Open /etc/hostname and change the entry to your new hostname (for example: ubuntu)

sudo vi /etc/hostname

Reload your hostname

hostname –F /etc/hostname