Open Source Monitoring in Action: Zabbix, LibreNMS & ClickHouse

To avoid expensive downtime, reliable infrastructure monitoring is crucial, but many businesses continue to use commercial tools that are expensive, have restrictive licenses, and lock in to a single vendor. The goal of this talk is to increase awareness of open source monitoring tools as strong, adaptable, and affordable substitutes that provide enterprise-level functionality without the drawbacks of proprietary solutions.

I will introduce three leading open source tools: Zabbix for comprehensive infrastructure monitoring, LibreNMS for network device tracking, and ClickHouse for high-performance analytics on monitoring data. I will explain the core architecture and strengths of each tool, showing how Zabbix enables full-stack monitoring with advanced alerting, how LibreNMS supports automated device discovery and SNMP-based monitoring, and how ClickHouse powers real-time analytics on large volumes of monitoring data.

The session will also include practical guidance on when to choose each tool, how they can be used together in hybrid monitoring environments, and examples of real-world organizations that have successfully migrated from commercial solutions. These tools typically reduce monitoring costs by 80 to 95 percent and offer benefits such as greater customization, stronger community support, and long-term sustainability.

This session will give you practical ways to start investigating and implementing open source monitoring tools in your environment, regardless of whether you're thinking about replacing an old proprietary system or beginning from scratch.

• Discover the benefits of open source monitoring tools
  Learn how Zabbix, LibreNMS, and ClickHouse offer powerful, flexible, and cost-effective alternatives to commercial monitoring solutions.

• Understand core capabilities and real-world applications
  Explore the architecture, strengths, and use cases of each tool, along with examples of successful migrations from proprietary systems.

• Get practical guidance to get started
  Gain actionable steps for deploying these tools, choosing the right one for your environment, and tapping into active community support.