Fail2Ban
Fail2Ban is a security tool that automatically bans IP addresses attempting multiple authentication failures.
Description
Fail2Ban is a daemon that enhances server security by banning IP addresses exhibiting malicious behavior, such as excessive failed login attempts. It achieves this by monitoring log files from various services (sshd, Apache, etc.) and automatically updating firewall rules to block offending IPs for a specified duration. Fail2Ban supports IPv6, is highly configurable, and offers extensive documentation and community support. It's designed to improve server security by mitigating brute-force attacks and other intrusion attempts. The software can be adapted to diverse use cases and log file formats to accommodate specific security needs.
Features
Log file monitoring: Fail2Ban actively scans log files for suspicious activity, such as failed login attempts. IP address banning: Automatically adds offending IP addresses to firewall rules, blocking further connections. Configurable ban durations: Allows administrators to specify how long IPs remain banned. Customizable filters: Enables support for a wide range of services and custom log file formats. IPv6 support: Compatible with both IPv4 and IPv6 networks. Command-line interface: Provides tools for managing and monitoring the ban process.
Benefits
Reduced risk of brute-force attacks and unauthorized access attempts. Improved server security by proactively blocking malicious IPs. Increased efficiency by automating the IP banning process. Easy to configure and adapt to various services and log file formats. Extensible with community-provided filters for a broad range of applications. Supports both IPv4 and IPv6 addresses. Widely used and supported by a large community, offering extensive documentation and support resources.
Links
- Home: http://www.fail2ban.org
- Source code: https://github.com/fail2ban/fail2ban
Details
- Open Source: ✅
- European: ❌