What Icinga is

Icinga is an open-source infrastructure monitoring platform. It checks the availability and health of hosts, services, network devices, and applications, and alerts when something is wrong or about to be. It runs entirely in the customer's own environment. Icinga is built by Icinga GmbH in Germany, is independent with no outside investors, and is released under the GPLv2 with no feature gating and no paid edition. Enterprises worldwide rely on it to monitor estates ranging from a few hundred to tens of thousands of hosts.

Where Icinga is strong

Icinga is built to give teams a dependable and complete picture of their infrastructure:

• Complete infrastructure coverage. Servers, services, network devices, storage, and hardware, all monitored from a single platform.

• Built for on-premises and hybrid. Icinga runs inside the customer's own infrastructure, with nothing leaving the network.

• Suited to regulated and air-gapped environments. Full data sovereignty for public sector, finance, healthcare, and defense.

• Scales cost-effectively. Broad coverage across large host counts, since Icinga is not priced per host.

• A strong path off Nagios. Modernise an ageing monitoring estate while keeping a familiar plugin ecosystem.

Core capabilities

• Host, service, and network monitoring using SNMP and active or passive checks.

• Agent-based and agentless monitoring to fit different systems and security requirements.

• Distributed, highly available monitoring with master-master clustering and no external database required.

• Configuration as code through the Icinga Director and a full REST API.

• Native OpenTelemetry metric export so Icinga data can flow into a wider observability stack when needed.

• Notifications, escalations, and dependency views for clear, actionable alerting.

• Full data sovereignty, self-hosted with nothing leaving the customer network.

• A large library of community plugins available at icinga.com/plugins

How Arctiq delivers Icinga

Arctiq brings Icinga to customers as a service, from first assessment through to a well-run production setup:

• Assessment and architecture for the right monitoring design.

• Migration from Nagios or other legacy monitoring tools.

• Deployment as code and integration into existing DevOps workflows.

• Enablement and knowledge transfer so internal teams can run Icinga with confidence.

• Official Icinga training. The Arctiq team is qualified to deliver official Icinga training courses.

Use cases Arctiq delivers

• Nagios migration and modernisation of an ageing monitoring estate.

• Monitoring for regulated or air-gapped environments that need a self-hosted tool.

• Network and hardware monitoring at scale across distributed sites.

• Cost-effective, broad infrastructure coverage where per-host pricing would be prohibitive.