#1IDS/IPS systems, network monitoring, anomaly-based detection, and threat alerting tools.
Kitploit recommended

Step-by-step guide for hardening a Linux server, covering SSH security, firewalls, intrusion detection, auditing, and system configuration to reduce…

SQL powered operating system instrumentation, monitoring, and analytics.

Open-source XDR and SIEM platform for threat detection, log analysis, file integrity monitoring, vulnerability assessment, and compliance management…

Cloud-native SIEM for intelligent security analytics for your entire enterprise.

Daemon to ban hosts that cause multiple authentication errors


Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server…

Open-source IDS/IPS and WAF engine that analyzes logs and HTTP requests to detect and block malicious IPs, leveraging a crowdsourced community…

ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. It has a robust event-based…

Zeek is a powerful network analysis framework that is much different from the typical IDS you may know.

MISP (core software) - Open Source Threat Intelligence and Sharing Platform

Centralized log management platform for collecting, indexing, and analyzing streaming logs, with alerting and event correlation for security…

Real-time cloud-native runtime security agent for Linux that monitors syscalls and container/Kubernetes metadata to detect anomalous behavior and…

Real-time malicious traffic detection system using public blacklists, static malware trails, and heuristic analysis to identify threats across DNS,…

Open-source network IDS/IPS/NSM engine for real-time traffic inspection, intrusion detection and prevention, protocol analysis, and rule-based threat…

🍯 T-Pot - The All In One Multi Honeypot Platform 🐝

Arkime is an open source, large scale, full packet capturing, indexing, and database system.

Interactive GNU/Linux application firewall that filters outbound connections, blocks ads and malware domains, manages system firewall rules via GUI,…