CrowdSec is a collaborative security engine that detects and responds to malicious behaviour.
It analyses logs and HTTP requests to identify attacks, then lets remediation components block or otherwise handle offending IP addresses.
CrowdSec uses a community-powered IP reputation network so installations can benefit from threat intelligence contributed by other users.
This is free and open source software.
Key Features
- Intrusion detection, intrusion prevention, and WAF capabilities
- Analyses logs and HTTP requests for suspicious behaviour
- Community blocklist of malicious IP addresses
- Hub with ready-made scenarios, parsers, and collections
- Decoupled “detect here, remedy there” architecture
- Supports Linux, Docker, Kubernetes, Windows, and more
- Command-line tool for managing alerts, decisions, and scenarios
Website: github.com/crowdsecurity/crowdsec
Support:
Developer: CrowdSec
License: MIT License
CrowdSec is written in Go. Learn Go with our recommended free books and free tutorials.
Related Software
| Intrusion Prevention for SSH | |
|---|---|
| Fail2Ban | Intrusion prevention software framework written in Python |
| SSHGuard | Protects hosts from brute-force attacks against SSH and other services |
| denyhosts | Helps thwart SSH server attacks |
| iptables | Configure the Linux 2.4.x and later packet filtering ruleset |
| CSF | ConfigServer Security & Firewall |
| reaction | Daemon that scans program outputs for repeated patterns, and takes action |
Read our verdict in the software roundup.
Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Discovered a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |

