Ubuntu 16.04 bootstrap script

bootstrap.sh

#!/bin/sh

sudo sed -i "s/IPV6=yes/IPV6=no/" /etc/default/ufw
sudo ufw default deny incoming
sudo ufw default allow outgoing
sudo ufw allow 22/tcp
sudo ufw --force enable
sudo ufw reload

sudo sed -i "s/.*PasswordAuthentication .*/PasswordAuthentication no/" /etc/ssh/sshd_config
sudo service ssh restart

sudo apt update
sudo apt upgrade -y

sudo apt install git vim