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Icinga
Nuremberg, Germany
What it is
Icinga monitors infrastructure and applications, collecting and analyzing data to help teams find and resolve errors. It covers servers, applications, and network devices, including on-premises and cloud servers. Dashboards, filtered and grouped views, and notifications give teams ways to review systems and investigate possible root causes. Clustering, custom checks, plugins, configurable monitoring logic, and distributed environments support different monitoring setups. Listed integrations include Grafana, InfluxDB, Elastic, Graylog, Ansible, Puppet, Terraform, AWS, Azure, Jira, PagerDuty, and ServiceNow. The free edition supports API automation and Git-based workflows, and a REST API is described for custom integrations. Icinga says communication between nodes uses TLS/SSL and provides certificate tools. It can monitor certificates, alert as they approach expiry, and verify self-signed certificates with a custom trust store. Icinga is self-hosted and supports Linux and Windows. Its Forever Free Edition costs nothing with no subscription needed and includes unlimited hosts and services. Paid subscriptions are also listed, including support starting at $15,000 a year.
For and against
For
- Free edition includes unlimited hosts and services
- Monitors servers, applications, and network devices
- Supports custom checks, plugins, and clustering
- Certificate monitoring includes expiry alerts
Against
- Self-hosted deployment
- Some official download packages require a paid subscription
- Older component versions receive limited or no maintenance
The verdict
Icinga offers a free, self-hosted monitoring edition with broad infrastructure coverage and customization options. Teams should account for its rolling update policy and the paid subscriptions attached to some packages and support.
Who it suits
Icinga is aimed at teams of any size that need infrastructure and application monitoring, including distributed environments. It suits teams prepared to use a self-hosted system on Linux or Windows.
Plans and prices
Forever Free Edition
Unlimited hosts and services · Free and open source
Read 4 Oct 2026 · icinga.com
Module Subscription
Includes Icinga Dependency Views · Upcoming modules excluded
Read 4 Oct 2026 · icinga.com
Repository Subscription
Enterprise Linux installation packages for Amazon Linux, RHEL, and SLES · Includes 60-day free trial
Read 4 Oct 2026 · icinga.com
Support Subscription
Basic tier · Price depends on infrastructure size · Includes professional support, enterprise modules, and enterprise installation packages
Read 4 Oct 2026 · icinga.com
On the record
- API
- The free edition supports automation via API and Git-based workflows, and the pricing FAQ describes a REST API for custom integrations.icinga.com · read 4 Oct 2026
- Certificate monitoring
- Icinga can detect and monitor certificates, alert on certificates nearing expiry, and verify self-signed certificates with a custom trust store.icinga.com · read 4 Oct 2026
- Coverage
- The product page describes monitoring servers, applications, and network devices, including on-premises and cloud servers.icinga.com · read 4 Oct 2026
- Integrations
- The maker lists integrations including Grafana, InfluxDB, Elastic, Graylog, Ansible, Puppet, Terraform, AWS, Azure, Jira, PagerDuty, and ServiceNow.icinga.com · read 4 Oct 2026
- Intended users
- Icinga describes its monitoring solution for teams of any size and says it is designed to scale from small setups to large distributed environments.icinga.com · read 4 Oct 2026
- Platform availability
- Official download packages are listed for Debian, Ubuntu, Windows, Fedora, openSUSE, Raspian, SLES, RHEL, and Amazon Linux; some require a paid subscription.icinga.com · read 4 Oct 2026
- Purpose
- Icinga monitors infrastructure and applications, collecting and analyzing data to help teams identify and resolve errors.icinga.com · read 4 Oct 2026
- Scale and customization
- Icinga supports clustering, custom checks, plugins, configurable monitoring logic, and distributed environments.icinga.com · read 4 Oct 2026
- Security
- Icinga says communication between nodes uses TLS/SSL and provides certificate tools for creating or using a certificate authority.icinga.com · read 4 Oct 2026
- Support
- Paid support offers 8×5 or 24/7 coverage, unlimited hosts and support cases, and plans covering 2, 5, or 10 Icinga servers.icinga.com · read 4 Oct 2026
- Support limits
- The support comparison lists 18 annual 24×7 cases for Enterprise, while Basic and Premium list none.icinga.com · read 4 Oct 2026
- Update policy
- Icinga’s rolling support model gives the latest component version full updates, the previous version security updates only, and older versions no maintenance.icinga.com · read 4 Oct 2026
- Visibility
- Icinga provides dashboards, filtered and grouped views, notifications, and troubleshooting entry points for root cause analysis.icinga.com · read 4 Oct 2026
