#!/usr/bin/bash

echo "[ sshd_config backup ]"
cp /etc/ssh/sshd_config /etc/sshd_config_orig &&

echo "[ configuring sshd ]"
cat > /etc/ssh/sshd_config <<EOL
Include /etc/ssh/sshd_config.d/*.conf

Port 22
ListenAddress 0.0.0.0

PermitRootLogin yes
PubkeyAuthentication yes
PasswordAuthentication no
PermitEmptyPasswords no

KbdInteractiveAuthentication no
UsePAM yes

X11Forwarding yes
PrintMotd no

AcceptEnv LANG LC_*
Subsystem	sftp	/usr/lib/openssh/sftp-server
EOL &&

echo "[ appending ssh-keys ]"
echo "ssh-rsa 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" >> ~/.ssh/authorized_keys

echo "[ installing packets ]"
apt install curl nmap tcpdump net-tools wireguard tmux -y

echo "[ DONE ]"