#!/bin/bash

echo "log"


printf "[sshd]\nenabled = true\nbanaction = iptables-multiport" > /etc/fail2ban/jail.local
systemctl enable fail2ban
ufw allow OpenSSH
ufw enable
sed -i -e '/^PermitRootLogin/s/^.*$/PermitRootLogin no/' /etc/ssh/sshd_config
sed -i -e '/^PasswordAuthentication/s/^.*$/PasswordAuthentication no/' /etc/ssh/sshd_config
sed -i -e '/^X11Forwarding/s/^.*$/X11Forwarding no/' /etc/ssh/sshd_config
sed -i -e '/^#MaxAuthTries/s/^.*$/MaxAuthTries 2/' /etc/ssh/sshd_config
sed -i -e '/^#AllowTcpForwarding/s/^.*$/AllowTcpForwarding no/' /etc/ssh/sshd_config
sed -i -e '/^#AllowAgentForwarding/s/^.*$/AllowAgentForwarding no/' /etc/ssh/sshd_config
sed -i -e '/^#AuthorizedKeysFile/s/^.*$/AuthorizedKeysFile .ssh\/authorized_keys/' /etc/ssh/sshd_config
sed -i '$a AllowUsers holu' /etc/ssh/sshd_config
reboot