Icinga
Released under GPL-3.0, Icinga monitors networks on self-hosted infrastructure.
Overview
The core of our monitoring platform with a powerful configuration language and REST API. Open source monitoring for networks, servers and more. Set up custom checks, get alerts fast and keep full control of your infrastructure. The project has 2K+ GitHub stars and is licensed under GPL-3.0.
Getting Started
Source: GitHub README
- Installation
- Monitoring Basics
- Configuration
- Distributed Monitoring
- Addons, Integrations and Features
- Troubleshooting
- Upgrading
Once Icinga Server and Web are running in your distributed environment, make sure to check out the many Icinga modules for even better monitoring.
Deploy
Replaces
Related Monitoring & Observability Tools
View all 92 →
Firecrawl
94KTurn websites into LLM-ready data — scrape, crawl, and extract structured content from any website as clean markdown, JSON, or screenshots.
Uptime Kuma
84KFancy self-hosted uptime monitoring with 90+ notification services, status pages, and 20-second check intervals — the open-source UptimeRobot alternative.
Netdata
78KReal-time infrastructure monitoring with per-second metrics, 800+ integrations, built-in ML anomaly detection, and AI troubleshooting — using just 5% CPU and 150MB RAM.
Elasticsearch
76KThe distributed search and analytics engine that powers search at Netflix, eBay, and Uber — sub-millisecond queries across billions of documents, with vector search built in for AI/RAG applications.
Grafana
73KThe open-source observability platform for visualizing metrics, logs, and traces from Prometheus, Loki, Elasticsearch, and dozens more data sources.
Sentry
43KSentry is the leading error tracking and application performance monitoring platform, helping developers diagnose, fix, and optimize code across every stack.