Fail2ban scans log files and bans IPs that show malicious signs, something like too many password failures and looking for the most common exploits.

Step1. Install Fail2ban on Debian

apt-get install fail2ban

Step2.  Configure Fail2ban.

You can configure Fail2Ban using the configuration files located in /etc/fail2ban/

The main config file and the most important is jail.local

In the following steps I will show you some configuration examples. You can study the Fail2ban man files later.

Step2.1 Add or modify the following line to set email destination for Fail2ban notifications:

destemail = contact@your-domain.tld Continue Reading...

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