#!/bin/bash

apt update
apt install fail2ban -y
systemctl start fail2ban
systemctl enable fail2ban


cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local

B_SEARCH="bantime  = 10m"
B_REPLACE="bantime  = 60m"

TR_SEARCH="maxretry = 5"
TR_REPLACE="maxretry = 3"

sed -i 's/$B_SEARCH/$B_REPLACE/' /etc/fail2ban/jail.local
sed -i 's/$TR_SEARCH/$TR_REPLACE/' /etc/fail2ban/jail.local

service fail2ban restart