This article discusses the importance of securing a server against unauthorized access attempts through Fail2ban, a software framework that helps harden server security by automatically blocking IP addresses that engage in suspicious activity. The author created an InfluxDB template to monitor Fail2ban metrics, providing insights into failed and banned IP addresses over time. The template allows users to visualize their entire monitoring configuration in one easily-shared text file, making it easy to set up and customize. Additionally, the article provides tips on how to secure an open SSH port, including using public key-based login and disabling password-based logins.