# - Debian stretch: 
# -    Download via package system
# -

cd /tmp

# - Install keys for thne repositoty
# -
wget http://ncomputers.org/debian/keyring.deb
dpkg -i keyring.deb
rm keyring.deb

# - Add repository
# -    creates:
# -       /etc/apt/sources.list.d/ncomputers.org-stretch.list
# -    with content
# -       deb http://ncomputers.org/debian stretch main
# -
wget http://ncomputers.org/debian/stretch.deb
dpkg -i stretch.deb
rm stretch.deb

# - Debian stretch:
# -    Install via package system
# -
apt-get update
apt-get install ncomputers.org-keyring
apt-get update
apt-get install fail2ban