#!/bin/bash -e

sudo apt install wireguard systemd-resolved unattended-upgrades \
		 postfix ufw lm-sensors nagios-nrpe-server

( umask 377
  echo "yOBdLbXh6KBwYQvvb5mhiku8Fxkqc5Cdyz6gNgjc/2U=" \
  | sudo tee /etc/wireguard/private-key >/dev/null )

( cd
  umask 077
  if [ ! -d .ssh ]; then mkdir .ssh; fi
  ( echo -n "ssh-rsa"
    echo -n " AAAAB3NzaC1yc2EAAAADAQABAAABgQDXxXnqFaUq3WAmmW/P8OMm3cf"
    echo -n "AGJoL1UC8yjbsRzt63RmusID2CvPTJfO/sbNAxDKHPBvYJqiwBY8Wh2V"
    echo -n "BDXoO2lWAK9JOSvXMZZRmBh7Yk6+NsPSbeZ6H3DgzdmKubs4E5XEdkmO"
    echo -n "iivyiGBWiwzDKAOqWvb60yWDDNEuHyGNznKjyL+nAOzul1hP5f23vX3e"
    echo -n "VhTxV0zdClksvIppGsYY3EvhMxasnjvGOhECz1Pq/9PPxakY1kBKMFj8"
    echo -n "yh75UfYJyRiUcFUVZD/dQyDMj7gtihv4ANiUAIgn94I4Gt9t8a2OiLyr"
    echo -n "KhJAwTQrs4CA+suY+3uDcp2FuQAvuzpa2moUufNetQn9YYCpCQaio8I3"
    echo -n "N9N5POqPGtNT/8Fv1wwWsl/T363NJma7lrtQXKgq52YYmaUNnHxPFqLP"
    echo -n "/9ELaAKbKrXTel0ew/LyVEO6QJ6fU7lE3LYMF5DngleOpuOHyQdIJKvS"
    echo -n "oCb7ilDuG8ekZd3ZEROhtyHlr7UcHrtmZMYjhlRc="
    echo " A Small Institute Administrator" ) \
  >>.ssh/authorized_keys )

cat <<EOD | sudo tee /etc/systemd/network/10-lan.link >/dev/null
[Match]
MACAddress=08:00:27:f3:16:79

[Link]
Name=lan
EOD

cat <<EOD | sudo tee /etc/systemd/network/10-lan.network >/dev/null
[Match]
MACAddress=08:00:27:f3:16:79

[Network]
Address=192.168.56.2/24
EOD

sudo systemctl --quiet enable systemd-networkd