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Zabbix

Zabbix is an AGPL-3.0 enterprise-class monitoring platform for networks, servers, VMs, applications and cloud, with agents, templates, alerting and dashboards.

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Introduction

Zabbix provides real-time monitoring of IT components and services such as networks, servers, virtual machines, applications and cloud. It has been developed for over two decades and is widely used in enterprises and telecoms.

The source code is at zabbix/zabbix on GitHub under the AGPL-3.0 licence, with about 6,600 stars; the most recent commit was on 10 November 2026.

Features

  1. Agents and agentless: Zabbix agent, SNMP, IPMI, JMX and HTTP checks.
  2. Templates: Ready-made monitoring for many systems.
  3. Triggers and alerts: Flexible problem detection and escalations.
  4. Dashboards and maps: Visualise infrastructure.
  5. Web monitoring: Multi-step HTTP scenarios.

Pros

  1. Free to use: Open source under AGPL-3.0.
  2. Maintained: Commits as recent as 10 November 2026.
  3. Community: About 6,600 GitHub stars.

Cons

  1. Complex setup: Steeper learning curve than SaaS tools.
  2. AGPL licence: Check obligations for modifications.

Install Zabbix server, frontend and database from the official packages or Docker images, add hosts with agents, and link templates.

Resources:

Pricing

Zabbix is free and open source (AGPL-3.0); commercial support is available, see site.

  1. IT operations teams monitoring mixed infrastructure.
  2. Organisations wanting free, self-hosted monitoring.
  3. Not a fit for distributed tracing.

Conclusion

Zabbix is a mature, full-featured open-source infrastructure monitor.

Alternatives

Other tools on CheckOps that cover similar ground. Open a page, or compare one with Zabbix side by side.