Fail2ban monitors your service logs for repeated failures and blocks offending IPs using your firewall. This guide explains the concept and gives copy paste jails for SSH on 22, HTTP on 80 or 443, and MySQL or MariaDB on 3306. How Fail2ban works Key terms: Install Fail2ban Install rsyslog Fail2ban only works if it can… Continue reading
Fail2ban on Debian 12, The Friendly, no‑nonsense setup
