<ul><li>Fail2Ban is a tool that protects servers from brute force attacks by monitoring logs and banning malicious IPs.</li><li>It is lightweight, open-source, and effective for services like SSH, Apache, and Nginx.</li><li>Installing Fail2Ban on Linux systems like Ubuntu/Debian or CentOS/RHEL is straightforward.</li><li>Configuring Fail2Ban involves setting parameters like bantime, findtime, and maxretry in config files.</li><li>Testing your setup includes simulating brute force attacks and monitoring bans using fail2ban client status.</li><li>Fail2Ban can be extended to protect other services like web servers and applications by creating custom filters.</li><li>Monitoring Fail2Ban activity in /var/log/fail2ban.log and fine-tuning thresholds are crucial for effective security.</li><li>Combining Fail2Ban with strong passwords and regular log monitoring enhances server security.</li><li>In summary, Fail2Ban is a valuable tool for intrusion prevention on Linux servers, providing a robust defense mechanism.</li><li>It is recommended to stay proactive with security measures to safeguard servers effectively.</li></ul>

Using Fail2Ban to Protect Against Brute Force Attacks

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