Create New Host from Ubuntu Backup Image

update.sh

# Better to be root
sudo bash

# Change IP address (static)
nano /etc/network/interfaces

# Update hostnames
nano /etc/hostname
nano /etc/hosts

# Generate new SSH host keys
rm /etc/ssh/ssh_host_*
dpkg-reconfigure openssh-server

# If dpkg-reconfigure doesn't work
ssh-keygen -t dsa -N "" -f /etc/ssh/ssh_host_dsa_key
ssh-keygen -t rsa -N "" -f /etc/ssh/ssh_host_rsa_key
ssh-keygen -t ecdsa -N "" -f /etc/ssh/ssh_host_ecdsa_key