sudo apt-get install eucalyptus-nc

• Note: Remember the name of your node's bridge device (we assume the name of your bridge device is "br0" for the rest of this document).

• For details on configuring a bridge, see: http://doc.ubuntu.com/ubuntu/serverguide/C/network-configuration.html

• The following script should configure your bridge correctly in most setups:

  interface=eth0
  bridge=br0
  sudo sed -i "s/^iface $interface inet \(.*\)$/iface $interface inet manual\n\nauto br0\niface $bridge inet \1/" /etc/network/interfaces
  sudo tee -a /etc/network/interfaces <<EOF
          bridge_ports $interface
          bridge_fd 9
          bridge_hello 2
          bridge_maxage 12
          bridge_stp off
  EOF
  sudo /etc/init.d/networking restart

Configure /etc/eucalyptus/eucalyptus.conf with the name of the bridge, and restart the node controller:

sudo sed -i "s/^VNET_BRIDGE=.*$/VNET_BRIDGE=$bridge/" /etc/eucalyptus/eucalyptus.conf
sudo /etc/init.d/eucalyptus-nc restart

• Note that there are several ways to configure a node to have a bridge as its primary interface, depending on the configuration of your machine. We show an example set of steps here but you will need to take care to ensure that this example configuration does not conflict with your local configuration if you wish to use it.

Finally, you need to install the Cluster Controller's eucalyptus user's public ssh key into the Node Controller's eucalyptus user's authorized_keys file. The easiest way to do this:

• On the Node Controller, temporarily set a password for the eucalyptus user:

  sudo passwd eucalyptus

• Then, on the Cluster Controller:

  sudo -u eucalyptus ssh-copy-id -i ~eucalyptus/.ssh/id_rsa.pub eucalyptus@<IP_OF_NODE>

• You can now remove the password of the eucalyptus account on the Node:

  sudo passwd -d eucalyptus